None of it is hard to do it's just really well executed, although by old school demo standards one has to ask if it's really 4kb because it uses so many Windows resources.
The demo scene began because of squeezing pirate intro's onto the space left on 880kb disks that wasn't used by whatever game they where pirating, I have a lot of respect for the guys who carry it on just for the sake of it, but looking through the breakpoint videos, I don't think the 'scene' really has a purpose anymore, nobody is breaking new ground, and there's nothing I havn't seen before.
Even 4kb demo's are not new, the problem is, technology is so impressive these days that it has pretty much superceded the geeks ability to do impressive things with it.
