Fortunate Fools
from 'A Treatise on Probability' by John Maynard Keynes
The infinitely rich gambler is the public. It is against the public that the professional gambler plays, and his ruin is therefore certain.
Might not Poisson and Condorcet reply, The conditions of the game imply contradiction, for no gambler plays, as this argument supposes, for ever ? At the end of any finite quantity of play, the player, even if he is not the public, may finish with winnings of any finite size. The gambler is in a worse position if his capital is smaller than his opponents'--at poker, for instance, or on the Stock Exchange. This is clear. But our desire for moral improvement outstrips our logic if we tell him that he must lose. Besides it is paradoxical to say that everybody individually must lose and that everybody collectively must win. For every individual gambler who loses there is an individual gambler or syndicate of gamblers who win. The true moral is this, that poor men should not gamble and that millionaires should do nothing else. But millionaires gain nothing by gambling with one another, and until the poor man departs from the path of prudence the millionaire does not find his opportunity. If it be replied that in fact most millionaires are men originally poor who departed from the path of prudence, it must be admitted that the poor man is not doomed with certainty. Thus the philosopher must draw what comfort he can from conclusion with which his theory furnishes him, that millionaires are often fortunate fools who have thriven on unfortunate ones.