I watched the loose change vid and although it is convincing I dont think the towers were demolished by explosives. It is a bit strange that other buildings have burned for 23 hours and not failed though. Then again I don't know shit about structures and their limits/tolerances to heat.

I remember spending one night watching loads of 9/11 videos on youtube and by the time I was done I just felt totally confused. It's still as shocking to watch too.