in reply to Name Space
"In a race in which the tortoise has a head start, the swifter-running Achilles can never overtake the tortoise. Before he comes up to the point at which the tortoise started, the tortoise will have got a little way, and so on ad infinitum. -- Internet Encyclopedia of Philosophy"
He had a related paradox which stated that motion was inherently impossible. I like using this one when my wife wants me to empty the trash or something else which requires movement.--
Zeno - Barcelona Perl Mongers http://barcelona.pm.org