Ah, but you are proceeding in separate stages, 4get, so it's not a case of two halves not making a whole! Each half is actually half of a different distance. To walk to a town 10 miles away, going halfway at a time, you go 5 miles on Day 1, say...2� miles on Day 2...1� miles on Day 3 and so on. Fair enough, on a certain day, you might be only an inch away from the town's limits, but next day you'll still be � an inch away, then � of an inch. You'll never make it! Cheers