You have missed the point. Actually, you are both wrong. The insect universe is presumably using a base 12 number system, and picked .06 as the magic value. .06(base 12) is 6 /(12*12) = 1/24 (decimal), and thus is actually a tighter requirment than .05 (decimal). Those damn insects are strict! Edit: For the record, I liked the point as to the arbitrariness of .05, regardless of how insects would do it.