I imagined that demo skills would eventually die and the more recent stuff would just end up being bloated or lame. But it really has improved. Infeasibly improved. Debris is amazing. But it isn't the only more recent amazing demo. Someone once asked me whether there was a limit to how realistic demos can be made. I would normally prate on about Shannon information or something, but it was a very smart mathematician who asked me. I did eventually think of a reason though. A demo is never going to contain a model of a piece of paper on which its own source code (plus additional information) is written in the demo. So there have to be some limits. But the limits don't seems to have been reached yet, especially with better and better modelling in the hardware.