I’ve more or less grown up with the demo scene on Atari and Amiga. The magicians: coders, graphic artists and musicians made stuff happen on the screen that was simply jaw dropping. Not the least considering the 8-bit computers with all the limitations that implied.
The scene is still alive and limitations is still a factor. This demo Fermi Paradox by Mercury runs on Windows and only requires 64k. And yes, Jaw dropping is still a factor.