["The exception that proves the rule centuries. Now as even begin well... (By this time your schoolchildre everyone else off the field.) Do beware of actual schoolboys audience, the smart alec is qu contradict you with the facts. S The exception that prove Exceptions, of course, disprove confronted by a counter-examp 'the exception that proves the dismissal of a valid objection to 'You never find songs writte London. ' 'What about \\\"Scarborough F 'That's the exception that pro (If one leaves Liverpool and Old The origin of the fallacy lies in The word 'prove', which is now something beyond doubt, used be 'proved' to establish its qualit passed down to us in this fallacy the test and, if it is found to instead of proving it in the mod","63 nners to the study of UFOs know only too en and half-wits should have cleared s though. If there is one in your uite likely to step forward and Some of them are too good. es the rule rules. Despite this, many people ple to their claim will dismiss it as rule'. The fallacy consists in the the argument. en about any towns in Britain apart from Fair?\\\" ' oves the rule. ' d Durham Town out of it.) n the changing uses of language. w taken to refer to establishing to mean 'test'. Something would ty, and this is the sense which has y. The exception puts the rule to be a valid exception, refutes it dern sense of the word:","64 No fictional character ever attr pop stars do. Sherlock Holmes exception that proves the rule (An elementary fallacy, dear Wats There is a very loose way in w point to an otherwise general exception as remarkable, and id show that we accept that the rule apply. In this sense, the one case to the otherwise general truth: Medical advances are made by know there was penicillin, but million. (Whether true or not, this is a leg the rule is not claimed as universa the unique exception points to a this one exception.) Even in this specialized case, the versal rule. The trouble with swee does take only one exception to world abounded with universal sun would always rise and set eac no such thing as a black swan. A v sun scuppered the first one, and Australia polished off the second. people if they could live in a worl huge general truths. Exceptions c like wolves at the fringes of a ca tainties and doubts, and the te","How to Win Every Argument racted fan clubs in distant countries like does, of course, but he's simply the e. son.) which an exception can help to truth. If we all recognize an dentify it as such, then it does e which it counters does usually e we recognize as a freak points y painstaking research, not by chance. I t everyone knows that was a chance in a gitimate line of argument provided al. Everyone's acknowledgement of rule which says the opposite, with e exception disproves the uni- eping statements is that it really o negate them. The medieval which assured people that the ch day, and that there could be visit to the land of the midnight the discovery of black swans in . It would be pleasant for many ld of certainties, surrounded by come baying at that cosy world amp-fire. They introduce uncer- emptation there is to use the","Exclusive premises fallacy quickly to get rid of the before. The exception that proves the who are emphatic in their judg neatly divided into categories, an of exceptions to intrude into th worldview. In their smooth-runn addicts, all feminists are lesbia weirdos. Any honourable except ejected with equal smoothness rule'. The great thing about this your argument invulnerable to embarrassing proofs that you ar lowed whole as 'exceptions th occasion no more than a slight 'Lend us a fiver. I've always paid 'What about last week?' 'That was the exception that prov in the long run. ' (Put on your trainers.) Exclusive premises The standard three-line argume premises and a conclusion; the the conclusion is deduced from t negative, no conclusion can be v fallacy is called the fallacy of exc No handymen are bakers, and no are fishermen.","65 em so that we can continue as e rule is a fallacy beloved of those gements. They have the world nd do not intend the irritant sand he well-oiled machinery of their ning world, all pop stars are drug ans and all young people are tions to the above categories are s as 'exceptions that prove the particular fallacy is that it renders o factual correction. The most re just plain wrong can be swal- hat prove the rule', and need pause in your declamation. d you back before.' ves the rule. You know you'll get it back ent called a syllogism has two premises are the evidence and them. If both of the premises are validly drawn from them and the clusive premises. o bakers are fishermen, so no handymen","66 (It seems innocent enough, but th men. If we had used 'tax-dodgers have ended up saying 'no han everyone knows is untrue. The premises.) The source of the fallacy is fairly c things to each other by means of t with a third. When both premises that two things lie wholly or par thing. They could do this howev other, and so no conclusion ab drawn: Some brewers are not idiots, brewers are not rich. (Did you ever hear of a poor one? idiots who are not rich do not nee include the brewers among their remember two things: two negativ and all brewers are rich.) The fallacy tends to occur be believe that if a group is exclud group in turn is excluded from group is also excluded from it. Masons, and the Masons cannot seems plausible to assume that Jo the country club. Of course, sinc John might stand a better chance No pudding-eaters are thin, an so some smokers are thin.","How to Win Every Argument he logic is fishier than the handy- s' instead of fishermen, we would ndymen are tax-dodgers', which fault lies with the two negative clear. The three-liner relates two the relationship which each has s are negative, all we are told is rtly outside the class of a third ver they were related to each bout that relationship can be and some idiots are not rich, so some With two negative statements, the ed to be the same ones who don't number. If this sounds confusing, ve premises do not prove anything, ecause some people genuinely ded from something, and that something else, then the first If John cannot get into the t get into the country club, it ohn doesn't stand a chance for ce the Masons cannot get in, e because he isn't one of them. nd some smokers are not pudding-eaters,","The existential fallacy (Many of us are negative about ments about them will not tell us are thin, it might well be from w and a lack of money to eat puddi When you want to use the fa should try to make your negat audience will accept the truth of which seems plausible, they will You will not get very far if you s 'No council workers are lazy', b within the bounds of your audi truisms such as 'No removal me The existential fallacy It is a curious feature of logic tha whole of a class do not actually members of that class. All cats are selfish. (This tells us that \/\/there are such It does not imply that there are c unicorns could be deduced from Statements which tell us about imply the existence of members Some cats are selfish. (This tells us that there are such th are selfish.)","67 puddings, but two negative state- s anything about smokers. If smokers worrying about the health warnings, ings after paying for the cigarettes.) allacy of exclusive premises, you tive statements ones which the f. When you slip in a conclusion assume that you have proved it. start out with statements such as but should try instead to keep ience's experience. Use obvious en are careful.' at statements which refer to the y tell us whether there are any h things as cats, then they are selfish. cats, any more than the existence of m a similar statement about them.) some of a class, however, do s of the class. hings as cats, and that some of them","68 The existential fallacy occurs which implies existence from pre If our premises are universal telli our conclusion is a particular on have committed the fallacy. All UFOs are spaceships, and a UFOs are extraterrestrial. (This seems harmless enough, but all UFOs were extraterrestrial, but they exist.) It seems puzzling that we can are, than to claim that only some with the thought that perhaps we start talking about the features wh others. The universal statements, such implication. The fallacy consists of putting for which no evidence was offered what is being talked about actua evidence, we enter into the territ All policemen are tall people, a some honest Welshmen are n (Alas, no evidence has been prod thing as an honest Welshman.) A conclusion about all honest acceptable, because it would refe The existential fallacy is clearly to engage in rational discourse a entities but who suffer from the m","How to Win Every Argument when we draw a conclusion emises which do not imply that. ing us about 'all' or 'none', and ne telling us about 'some', we all spaceships are extraterrestrial, so some t it is not valid. We could have said by limiting it to some we imply that be more entitled to say that all e are. We can console ourselves e have to know some of them to hich apply to some but not the by not sorting any out, carry no into the conclusion something d, namely the presumption that ally exists. By going beyond the tory of the fallacy. and no honest Welshmen are tall people, so not policemen. duced to show that there is such a Welshmen would have been er only to any who might exist. y the domain of those who wish about astral forces and demonic minor disadvantage that there is","Ex-post-facto statistics no evidence that any of these th made telling what the things m somehow we begin to encoun them. At that point, unknown t of real existence has been slipp ace dropped furtively from the All psychic entities are affect are more sensitive than othe hatred. (And the same is true of invisible hearted Swedes. Before you can catch your hare.) Use of the existential fallacy ences will respect your modest assertions about all things to clai This readiness is the gate throug and six loaded with fairies an mentals. The malleability of hum of man went through the same Ex-post-facto s t a t i s t i c s A statistician has been describ mathematically precise line from a foregone conclusion. It is not q innumerable statistical fallacies r the unethical. The fallacy of ex-p when we apply probability laws I drew the ace of spades. It was o (The same applied to all the card","69 hings exist at all. Statements are must be like if they do exist, and nter claims made about some of to the audience, the assumption ped in without evidence, like an sleeve. ted by human emotions, but some of them ers, and tend to be aroused by fear and e frogs, spotted Saturnians and warm- start sorting them out, you must first y is surprisingly easy. Most audi- t claims if you move down from ims made for only some of them. gh which you can drive a coach nd hobbits, ectoplasm and de- man nature and the perfectibility gate long ago. bed as someone who draws a m an unwarranted assumption to quite as bad as that, but there are ready to trap the unwary and aid post-facto statistics is perpetrated s to past events. only a 1 in 52 chance, but it came up. ds, but one had to come up.)","70 We cannot draw too many co ability' of certain past events. So the range of possibilities is large occurring is small. Whichever on ability. The fallacy is committed w the occurrence of events of low supernatural was operating: \/ met my aunt in Trafalgar Squa of thousands going through th unlikely it was that we should (And the same applies to the thou The probability of heads coming in 16. The same is true of every o come up; only one thing is cert come up if you make four tosses evidence, using statistics in an mysterious influences where no statistics often appear in specula life and the universe. Exotic calcu the incredible unlikelihood that th as they did: How lucky we are that our pla for us, and just the right atmos than luck. (Ten-legged blue things breathing 70-Ophiuchi are even now saying Similar claims are made of chemicals coming together to fo universe chemicals combine in","How to Win Every Argument onclusions from the low 'prob- omething has to happen, and if e, the probability of each one ne occurs thus has a low prob- when we go on to suppose, from w probability, that something are on Wednesday. Think of the hundreds he square that day, and you'll realize how d meet there. Maybe we are telepathic. usands of others you met.) up four times in a row is only 1 other combination which might tain, that a 1 in 16 chance will s. The fallacy goes beyond the inapplicable way to point to one are needed. Ex-post-facto ations concerning the origins of ulations are trotted out showing hings could ever have happened anet has just the right temperature range sphere for us to breathe. It has to be more ng ammonia on the third planet of g the same thing.) the probability of the right orm life. The fact is that in our n certain ways. If they were","Ex-post-facto statistics different, no doubt different be be congratulating themselves o The fallacy is a great prop fo the children of destiny. Looking led to their present position, th hand of fate behind them, nev different they could have said t just think, if we hadn't happ might never have met and n (But they might have met and themselves just as fortunate.) Your use of this fallacy wil temperament. It can be deplo others that you are a favoured to receive special consideration \/ believe I was meant to get paper the wind blew against something put me in that pla I'm not saying that should in (But it should. Few of us like t destiny by stamping on its fing If you have the other temper fallacy to gain some sympathy: just my luck! Of all the parkin checking, it had to be mine.","71 eings in a different universe would on their good fortune. or those who suppose themselves g at the unlikely events which have hey see the unseen but inexorable ver realizing that had things been the same. pened to be staying in the same hotel, we never have married. d married other people, and thought ll depend a great deal on your oyed at short range to convince child of the universe and entitled n: this job. I saw the advertisement for it in a t my face in Oxford Street. I feel that ace at that time so that I would get this job nfluence your decision, but... to confront the remorseless hand of gers.) rament, you can always use the : ng meters in London she could have been And just at the worst possible time!","72 (If you can fit going to the pub in b by the universe, lines like this sho thetic pint.) Extensional pruning We are guilty of extensional pru commonly accepted meaning, bu a strictly literal definition. The fall there are two ways of understand describe the properties of what examples. The first is called the 'in 'extension' of the word. We co expression such as 'movie star', fo the role of lead actors and actress well-known stars. Words carry nuances of mean tendrils of thought ripple around t dependent on past associations. meaning of the word, provided th hearer alike. The fallacy of extensi the user subsequently retreats fr upon only a literal 'intentional' de While I said I would accept an independent, that it would be published. (He might be correct in a limited But this is not what most peop associations they make with previo The fallacy is committed by sa another to be understood. A con","How to Win Every Argument between being used as a punchbag hould be good for the odd sympa- uning if we use words in their ut retreat when challenged into llacy becomes possible because ding what words mean. We can we refer to, or we can give ntension', and the second is the ould convey the sense of an or example, either by describing ses in films, or by listing several ning by their associations. Little them, evoking all kinds of ideas These nuances are part of the hey are understood by user and ional pruning takes place when rom that meaning by insisting definition. inquiry, I at no time said that it would be a public one, or that its findings would be d, technical definition of the word. ple normally understand from the ious inquiries.) aying one thing, but permitting ntention must be the same to","Extensional pruning both user and hearer, or no There are two ways of committi at the outset, the other is to re order to escape weaknesses in t All we said was that we'd install work. (Nor did they.) Advertisers often take pruni claims they have made. We'll take your one-year-old car (Strictly speaking, you paid one the tax. They are not offering whatever you might have thoug Friends who are free with advice similar way, after the consequen Look, I know I said you'd feel like who feel pretty miserable. Stop (You would feel like a swine if y lots of swine who'd enjoy it.) The extensional pruner anno wave of an advancing ship, his u inevitable 'all I said was . . . ' and . . . ' show him to be a man of gr him as the man who never rea took him to be saying. The fine this case in the dictionary.","73 reasoned discussion is possible. ing this fallacy: one is to mislead etreat to a restricted definition in the position. a switchboard. We didn't say it would ing shears over the extravagant r as trade-in, at whatever you paid for it. sum for the car, and another sum for to give you the tax back as well, ght.) e often cut back the meaning in a nces have emerged. e a millionaire. I know lots of millionaires complaining. you hit him, but you probably know ounces his activity. Like the bow utterances mark his passage. The d 'if you examine my exact words reat qualifications. You recognize ally said at all what most people print one always watches for is in","74 You can add extensional prunin are adept at making a limited stat one. Gather yourself a collection understood by everyone, even tho more restricted. \/ said I'd get you another drink if I I said I wouldn't have any more cig minutes afterwards was later in the (Speak softly, and carry a big dicti False conversion False conversion takes place when all cats are animals the additional i cats. The converse of a stateme subject and predicate, is true in so it is performed for one of the i conversion. All rats are four-legged animals, so rats. (This one is obviously false. Others Some mortal beings are not cats, beings. (It would be remarkable if the ex were sufficient to establish the e cats.) The rule is intricate, but worth ments about all or some, and we assertions. This gives us four types","How to Win Every Argument ng to your repertoire once you tement pass itself off as a wider of phrases whose meaning is ough the words themselves are was wrong: water is another drink. garettes until later in the week. Five e week. ionary.) n we deduce from the fact that information that all animals are ent, made by exchanging the ome cases, false in others. When invalid cases, it is called false o obviously all four-legged animals are s are less so.) therefore some cats are not mortal xistence of beings other than cats existence of an immortal strain of h learning. We can make state- can make positive or negative s of statement:","False conversion 1 . All are 2. Some are 3. None are 4. Some are not The rule is that only types 2 and exchange subject and predicate the fallacy of false conversion. T you cannot swap a distributed class) for an undistributed one predicate cover only part of the cover all of it. Types 1 and 4 can they mix distributed with undi means in practice is that you can form Some As are Bs and No As are Bs but you cannot swap those whic All As are Bs or Some As are not Bs If we know that no innovative deduce perfectly correctly that people. What we cannot do is d some journalists are not drunks some drunks are not journalists. I cannot deduce it from a false co In practice, most people c converting statements about all","75 d 3 give valid conversions. If you e for types 1 and 4 you commit The reason for the fallacy is that term (covering the whole of its e. In type 2 , both subject and e class, and in type 3 they both nnot be swapped around because istributed terms. What the rule n swap around statements of the ch tell us e people are bureaucrats, we can t no bureaucrats are innovative deduce from the knowledge that s the alternative statement that It may happen to be true, but we onversion. can spot the obvious falsity of ll animals or all cats. The fallacy","76 tends to be more common, and m in the 'some are not' form. Since we know that some Marxi some school-teachers are not M (No it doesn't.) Your own wilful use of this falla is a short-range tactical fallacy, a letting the audience know if you a The claim that 'Texas rabbits are than a metre long' is skilfully ambig refers to some Texas rabbits or a false conversion would then leave any animal in Texas more than rabbit. It would also leave any Tex False precision False precision is incurred when inexact notions. When straigh experience are decked out in num of possible measurement, the pre an audience into supposing that th than is really the case. People say the Scots are mean, be 63 per cent more generous (What measurement of generosity be put on it?)","How to Win Every Argument more deceptive, when it appears ists are not school-teachers, it follows that Marxists. acy requires careful planning. It and is best concealed by not are talking about 'some' or 'all'. animals which grow to more guous. It is not clear whether it all of them. Your surreptitious e your audience convinced that a metre in length must be a xans hopping mad. exact numbers are used for htforward statements about mbers well beyond the accuracy ecision is false and can mislead he information is more detailed but they have been shown in surveys to than the Welsh. allows for that kind of a figure to","False precision Both mathematics and sci numbers, and both have prest extension of exact numbers in them is often little more than statements with the aura and p and science. The fallacy derives from the from the attempt to impart m than the evidence for them act Our mouthwash is twice as g competitor. (On what instrument, do you su a mouthwash; and in what units There are several versions of th common that the numbers used the confidence one can place in Four out of five people can't (It may be true, but how is it est against-one test repeatedly fai impressed. If smaller numbers sample from a plateful of crack butter, we might be rather less Yet another version might talk a a highly important factor. Kills 99 per cent of all househ (A worthy claim, unless the rest","77 ience make widespread use of tige as sources of authority. The nto areas quite inappropriate to n the attempt to invest certain prestige attaching to mathematics e use of unjustified material, and more confidence in the assertions tually merits. good, yes two times as good, as its leading uppose, can one read off the quality of s?) his fallacy, all of which have it in d give a misleading impression of n the claim. tell margarine from butter. stablished? If large numbers on a one- il to distinguish them, we might be fail to pick out the one margarine ckers covered with different types of impressed.) about quantity, where quality was hold germs. t happen to be typhoid.)","78 False precision is as necessary many academics as are public departments float upon it, just a ingredients. Those who are eng beings, for example, find few me Because the real qualities of peopl are constructed which can be mea passed off as the real thing. Birmingham children are more study of essays written by 10-ye used 15 per cent less racial ep Birmingham. (The assumptions here are manifo agree upon what constitutes a racia in essays reflects their importance use of them by children is eviden differences between Birmingham a etc. None of these doubts qualify Macroeconomists happily repo 1.4 per cent, instead of the pre telling us that some measureme within 5 per cent accuracy. Som could be out by up to 10 per cen Psychologists measure the ab problems and call their answers measure how people respond to answers as a measurement of att hastily erected and flimsy bridge from reality into the world of our will bear. Always use the fallacy when you claims. Behind the figures you quo","How to Win Every Argument to the continued happiness of money and whisky. Whole as some do on the other two gaged in the study of human easuring rods scattered about. le cannot be measured, indices asured, and then the indices are racist than their London counterparts. A ear-olds showed that the London group pithets than their peer group in old. Maybe one can identify and al epithet. Maybe their appearance in the lives of children. Maybe the nce of racism. Maybe the cultural and London are not important etc., the opening line.) ort that growth-rates were only edicted 1.7 per cent, without ents of GDP cannot be taken me figures for growth of GDP nt. bility of children to solve set s intelligence. Social scientists o questions and describe the titudes. False precision is like a to carry our knowledge over desire. The load is more than it u need more authority for your ote, your audience will conjure","The gambler's fallacy up an army of white-coated sc tacles, and dedicated doctors careless urgency. The invisible ar each precise statement you ma have doubted you they will be re who underwrite your figures. Whatever the academic meri duces more balanced children psychological abnormalities a (Just don't tell them that the a competitiveness and the desire t Remember to be exact, espec We can be 90 per cent certai (And 100 per cent certain that y The gambler's fallacy Few fallacies are more persiste belief that the next toss (or sp influenced by the last one. Gamb fallacy by confusing the odds ag odds against any event in that s The odds against a tossed coi in a row are easy to calculate. T 1\/2 x 1\/2 x 1\/2 x If the first four tosses, despite th chance of the fifth toss being hea","79 cientists with horn-rimmed spec- s with stethoscopes draped in rmy will nod sagely in support of ake, and if the audience might eassured by the phantom legions its, single-stream schooling certainly pro- n. Surveys have revealed 43 per cent fewe among groups which... abnormalities included self-esteem, to learn.) cially when you are being vague. in that Bloggs is the guilty man. you cannot prove it.) ent in gambling circles than the pin, or draw) will somehow be blers, and others, are led into this gainst a whole sequence with the sequence. in coming down heads five times The answer is x 1\/2 x 1\/2, or 1 in 32 he odds, come down heads, the ads is not 1 in 32, but 1 in 2 , as it","80 was for each of the other tosses. Th the odds for the next one. In rand is separate from previous or future seeing four heads in a row, woul because five in a row is unlikely. T probably bet on heads again, sus Red has come up 73 times out o That means we are due for a run (If the table is honest, the odds on as the odds on red.) There is widespread belief in somehow even out. The phrase 'th a general feeling that after two improve. Not so. If the events are reason for supposing that two los win. If, as is more common, the and competence of the perform establish a basis for judgement. I'm backing Hillary Clinton on th (Oh yes she can.) One area where previous events is in the draw of cards from a limit is drawn from a pack of 52 ca chances of another ace being reduced. Professional gamblers a which cards have been drawn alre forthcoming draws. Still other gam up from their sleeves what the la have denied them from the deck.","How to Win Every Argument he previous tosses do not affect dom or chance events, each go re ones. Most casual gamblers, ld bet on tails for the fifth toss The professional gambler would specting a crooked coin. of the last 20. n of blacks. I am betting on black. n black remain, as before, the same n everyday life that luck will hird time lucky' is indicative of failures the odds for success genuinely random, there is no sses improve the chances of a results reflect on the character mer, the two losses begin to his one. She can't be wrong all the time. s do influence subsequent ones ted pack. Obviously, if one ace ards containing four aces, the g drawn are correspondingly are very good at remembering eady, and how this bears upon mblers are very good at making aws of chance and probability .","The gambler's fallacy Many so-called 'systems' of g bler's fallacy. If betting on a 1 in after each loss, then when you d and make a modest gain. The tro maximum stake, if not your ow doubling up. (Try the trick of do square of a chessboard, and see h total harvest.) Furthermore, the o it takes to beat such a system wil to wipe out all of the winnings y rule is worth betting on: the hou You can use the gambler's unfounded general belief that th My argument for avoiding the we on about half the summers this ce years, the odds are that it will rai (Things change, even in the wes You may find the gambler's suading people to go along wit which indicates that luck was n \/ propose this candidate for our n chose were pretty useless, but tha had my share of the bad luck and (This sounds like bad judgement that the new choice will be both The last four lawyers I had dealin must be better. (No chance.)","81 gambling are based on the gam- n 2 chance, you double the stake do win you will recover your losses ouble with this is that the rules of wn resources, will soon stop you oubling up ears of wheat on each how quickly you reach the world's odds are that the sequence which ll occur with a frequency sufficient you made waiting for it. Only one use always wins. fallacy by appealing to a quite he universe is somehow fair. est of Scotland is that it has rained there entury. Since it was fine for the last two in this year. st of Scotland.) fallacy particularly useful in per- th you, despite a previous record not involved. new secretary. I know that the last three I at's all the more reason to suppose I've d will be right this time. disguised as bad luck. The odds are h pretty and useless.) ngs with were all crooks. Surely this one","82 The genetic fallacy The genetic fallacy has nothing t but a great deal to do with not lik from. People give less credence those they detest, regardless of themselves. Every time you dism because you dislike its source, yo The fallacy is sometimes called 'da take it that the argument is sent Don't be obsessed with punctu trains to run on time. (Mussolini's views on trains, wh argument on punctuality. Bad m almost bound to say something rig anzee typing at random might p favoured road safety and disapp have hit it lucky on the subject of The genetic fallacy makes the source of an argument affects its sometimes utter worthy argumen from silliness. The argument st strength nor weakness from its so This particular fallacy is often f world of fashionable ideas. A view source is given credence, but the it emanated from someone less m The objections to the Council's property developers, and can b (Why? Private developers might insights on such matters. They are","How to Win Every Argument to do with Darwin or Mendel, king where an argument comes to views which emanate from the actual merit of the views miss an argument or opinion ou commit the genetic fallacy. amning the origin', and we can to hell along with its source. uality. It was Mussolini who wanted the hatever they were, are hardly an men, especially verbose ones, are ght occasionally, much as a chimp- produce Hamlet. No doubt Hitler proved of cancer. Mussolini might trains.) mistake of supposing that the validity. Utterly wicked people nts, while saints are not immune tands alone, drawing neither ource. found basking in the hothouse w from a currently fashionable same view would be rejected if modish. s new bus timetable come only from private be ignored. well have legitimate opinions or e, alas, still b\u00eates noires in the world","Half-concealed qualification of local politics. Had the same o Earth they might have found mo The genetic fallacy is nowh connection with the alleged vie figures. The association of Adol erally sufficient to damn it. His Attila the Hun, left fewer writing uted to them. In rare cases the with the simple epithet Machiav to remove an idea from conside Tinkering with genes is fascist ta (Actually, he did favour breeding which is not necessarily the sam orders by gene-splicing. In view surprised that the bloodstock ind as far as they have. For that m seem to have caught on quite w To use the genetic fallacy with do is point out that your oppone forward in Nazi Germany, th Augusto Pinochet and Saddam are advocating points of view Princess Diana and Mary Poppi Half-concealed qualificat In a half-concealed qualification, limited claim, but the stress an qualifications are glossed over. A","83 objections come from Friends of the ore sympathetic ears.) here more widely seen than in ews of a few universally detested lf Hitler with a viewpoint is gen- predecessors, Genghis Khan and gs, but have many views attrib- hated name becomes adjectival, vellian or Hitlerian being sufficient eration by decent people. alk. That's what Hitler tried to do. g from what he saw as superior stock, me as trying to eliminate certain dis- w of his known association, one is dustry and dog-breeding have gone matter, Volkswagens and autobahns well, too.) th devastating effect, all you need ent is echoing arguments first put hen subsequently taken up by Hussein. You, on the other hand, put forward by Mother Teresa, ins... tion , the words themselves express a nd construction is such that the Although the limits are stated, the","84 audience barely notice them on th more general statement. Practically every single case of m months by an attendant genera (This is the classic statement of sad - nobody else does.) In this example the qualifying wor by the stress given to 'every sing cases turn up which do not foll retreat to the qualification and p not claim to cover all instances. There is a fallacy inherent in then engaging in discussion as if important information that the a cases is omitted from consideratio expressed does not remove the qualification is half-concealed wh and which excludes relevant info The link between poltergeist p now clearly established. In alm and moving objects, there is a (And since no one noticed the 'alm the other cases.) Half-concealed qualification is case. When there is a gap in the e link, the fallacy papers over the cra not admit unexplained exceptions very far by telling us that objects each other by a force which varie","How to Win Every Argument he way to a discussion about a monetary expansion is followed within 16 al price rise of the same proportions. do-monetarism. Note the first word rd 'practically' is half-concealed gle case'. Should embarrassing low the rule, one can always point out that the assertion did making a restricted claim and f it were a general claim. The assertion does not apply to all on. The fact that the limitation is fallacy. It is the fact that the hich causes it to be unnoticed, ormation. phenomena and psychological troubles is most every case of unexplained breakages a disturbed youngster in the household. most', we don't need to talk about widely used to support half a evidence supporting a complete ack. Science and philosophy do s. Newton would not have got s are usually attracted towards es inversely with the square of","Half-concealed qualification the distance between them. In rigorous, and the fallacy finds ro like a complete one. Palm trees don't normally gro (Normally he'd be right; but the Social engineering is often p plete assertions governing how Most crime is caused by juven from broken homes. The ans more family counselling centr (Maybe it is. Let's hope the staff argument does.) There is a common character away with half-concealed qualif readiness to think of cases whi which do not. On being given a bosses flirt with their secretaries selves thinking of cases which th thoughts led immediately to bos use this propensity to have mor they are really claiming. Just about every Cambridge m services in the late 7940s has t don't we cut our losses, fire t ('Just about every' seems in this three; but everyone will think of were exposed, rather than about","85 daily life, however, we are less oom to make a partial case seem ow in England, so it must be something else ere are exceptions.) proposed on the basis of incom- humans generally behave. niles, and nearly all young offenders come swer to rising crime is not more police, but res. f have as many qualifications as the r trait which will help you to get fications. It expresses itself in a ich do fit, rather than of cases limited statement, such as 'Most s', many people will find them- hey have known. Few find their sses who do not do this. You can re read into your assertions than man working in the Foreign Office or securi turned out to be a spy and a traitor. Why the rest, and not hire any more? case to mean a handful, or maybe the ones they have read about who t the others who were not.)","86 Hedging Hedging is put around argument to prevent them from being tra means sheltering behind ambigu can be changed later. ('I said th Middle East was an all-out war, have embarked upon is a limited Hedging involves the advance retreat. The words and phrases a option is retained to do a switch ments and examples bearing dow hedge barring their advance, wh in a different field. ('All I said wa able hour. I think that three o'clo able hour in view of what I've be Hedging is fallacious because different statements under the interpretations are smuggled, like clinging to the undersides of the The hope is that the hearer, like know the difference. The effect the information it purports to co Soothsayers would be sorrier them more than one chance. Jus backing more than one horse, s more than one outcome. Be bloody, bold and resolute; lau none of woman born \/ Shall harm (The hedge was that the witche description did not apply to t *William Shakespeare, Macbeth, iv, i, 7 9 -","How to Win Every Argument ts, as it is around fields of crops, ampled. Hedging in argument uous meanings so that the sense he last thing we wanted in the and I stand by that. What we d war...') e preparation for a definitional are so carefully chosen that the h in definitions. Opposing argu- wn on the arguer suddenly find a hile their quarry may be sighted as that I'd be home at a reason- ock in the morning is a reason- een doing.') e it puts forward two or more guise of one. The alternative e the companions of Odysseus, sheep which they appear to be. e the blinded Cyclops, will not of hedging is to render useless onvey. souls without hedging to give st as you hedge bets in a race by so in prophecy you can bet on ugh to scorn \/ The power of man, for m Macbeth* es failed to tell Macbeth that this those such as Macduff, born by -81.","Hedging Caesarian section. He found this moved from Birnam to Dunsinan Most oracles and insurance ag of hedging: some take it to unim Nostradamus are so obscure, an ways, that they can be used to p have claimed to find in them th and astonishingly accurate, fore Napoleon and Hitler, but even emerge from his pages. As with a there are tell-tale signals. People ences in the writings of Nostrad pened. They are not successful what will happen. There is also a way in which subsequent ages prophecies made sense for their Dishonesty is an essential asp inserted deliberately with intent of proving the perpetrator corre fairground fortune-teller shelters telling you that you are destined 36 bus home). The economist h the hedge that things will get w the world economy; (when they was a major change in the world Hedging requires planning. ambiguous phrases on the spur find them in the prepared statem in the off-the-cuff remark. You phrases which look plain enou bedecked with hedges as you a You will find the cheque paid (When?)","87 s out after a very large hedge had ne.) gents are notorious for their use magined lengths. The centuries of nd can be translated in so many predict literally anything. People he most astonishingly detailed, etelling of the future. Not only n recent popes and politicians all hedged prophecies, however, e are very good at finding refer- damus to what has already hap- at finding accurate accounts of a remarkable consistency to the s have found that many of his own time. pect of hedging. The ambiguity is to deceive, and for the purpose ect, whatever the outcome. The harmlessly behind her hedge by to travel (even if only on the No. hides rather more wilfully behind worse, barring a major change in y get better, it is because there d economy.) . Few people can toss off r of the moment; we expect to ment which is issued, rather than should accumulate a stock of ugh from one angle, but are approach them. d directly into your bank account."]
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