Get hip/knee replacement surgery while you're still healthy and can recover from all that surgery. Maybe even have them all done at once!-- dean, Jan 06 2000 abhi http://www.hotmail.com [us, Jan 11 2002, last modified Oct 04 2004] Why not replace the entire endoskeleton with a carbonfiber composite endo/exo skeletal hybrid? I suppose you'd have to wait until you were fully grown, and the attractiveness of the idea had waned somewhat.-- jimfl, Jan 06 2000 Surely the lifetimes of these things will get longer. It becomes an optimization problem. I would say that soon after your present parts become too inferior to the spare parts, but before you are so old that recovery from surgery will be problematic, would be a good time.-- dean, Feb 02 2000 Within 30-50 years we'll be regenerating duplicate organs to replace your worn out ones. No more titaninum/teflon joints but your own flesh and blood.-- bromide, Feb 09 2000 Even still, bromide, it would make sense to undergo "freshening" before the shock to your system would make it too difficult to undergo surgery.-- centauri, Jan 16 2001 *Takes notes for blackmail purposes*-- thumbwax, Jan 11 2002 <laughing at thought> Peter going around intoning in a daleky voice "baked" "baked" "baked" "baked"-- po, Jan 11 2002 is that how the petersealybot was born?-- mihali, Jan 11 2002 It only does "no new windows".-- mwburden, Jan 11 2002 (Laughs at the image of [PeterSealy] ever having been a kid)-- phoenix, Jan 11 2002 baked - see: Matt Hoffman-- chud, Mar 15 2002 Matt Hoffman had all his bones replaced by titanium replacement bones? Creepy. No wonder he recovers from crashing his BMX so fast.-- croissantz, Aug 22 2004 random, halfbakery