Very clever -- reminds me of those guys who put entire video games inside arbitrarily small limits and procedurally generate all the textures and assets.
These are coincidentally the top rated demos on pouet, by I know them well before I know pouet.
Also, seeing '.the .product' for the first time firmly bolted my career to high performance computing and permanently changed how I think about programming and design things.
I also remember seeing .the .product for the first time and it absolutely blowing my mind.
This was pre-youtube of course so you had to actually download and run the binary.
But it's over 20 years old now and I suspect it's not very impressive to the next generation brought up on ready-to-use engines and asset stores, even if it does all fit in less space than a single typical asset.
But part of what made it impressive 20+ years ago is that the graphics were good and the framerate super smooth. While they weren't Quake3 levels of graphics quality they were genuinely great for something so small.
That quality doesn't translate when looking at it now, especially when viewing it through youtube and a layer of compression.
However, it still works well and renders well on modern computers. That's a feat in itself.
Also, it's still impressive for an 64kB demo, and it still prints the stats at the end, so seeing GBs of data produced from formulae and procedures still makes people wow.
Of course, Debris is another level, but it makes people understand what computers are capable at the end of the day.
https://en.wikipedia.org/wiki/Demoscene