I close my eyes and see a flock of birds. The vision lasts a second or perhaps less; I don’t know how many birds I saw. Were they a definite or an indefinite number? This problem involves the question of the existence of God. If God exists, the number is definite, because how many birds I saw is known to God. If God does not exist, the number is indefinite, because nobody was able to take count. In this case, I saw fewer than ten birds (let’s say) and more than one; but I did not see nine, eight, seven, six, five, four, three, or two birds. I saw a number between ten and one, but not nine, eight, seven, six, five, etc. That number, as a whole number, is inconceivable; ergo, God exists.
[From Dreamtigers, by Jorge Luis Borges, translated by Mildred Boyer]
[This would have made more sense (or less) if all he had written was: "The number, as a whole number, is inconceivable; ergo, God exists." But that wouldn't have been Borges. Apparently, his entire argument hangs on the word "inconceivable" (spoken with a lisp) . . . but how that word makes this a sound argument, I don't know . . . I love Borges.]