If you missed it, there was also a similar demo but with Windows 95 just a few days ago, http://win95.ajf.me/
(I should really add that to the site. Hmm.)
Compare that to michaelv.org (now defunct), which very faithfully reproduced Windows 3.1, complete with games, a filesystem, various small utilities, and such. Or to win95.ajf.me (which I made) which has an actual instance of Windows 95 in it, so you can fiddle about with the real thing.
I dunno. Windows 93 is fun, but it's not quite the same experience. I'd love to make something in the same vein as michaelv.org for Windows 95. I already have win95.ajf.me, of course, but a recreation of 95 is fun for its own reasons.
It's a tiled window manager!
Flat UI just reminds me of Windows pre-95 and Mac OS pre-8, which I've never found aesthetically pleasing.
https://www.google.com/search?q=grip+floor&source=lnms&tbm=i...
It's funny that Paintbrush lost the constrained line drawing (no more guides), what a regression.
Also, I laughed at the TODO list. todomvc.com has nothing on it.
By contrast the Mac didn't provide any Apple 2 backwards compatibility (although I believe one Mac model had an add on board, and there was the IIgs). Windows and the Mac were competing in different dimensions (backwards compatible, hardware & software variety versus green field new platform).
TopView - https://en.wikipedia.org/wiki/IBM_TopView - GEM https://en.wikipedia.org/wiki/Graphical_Environment_Manager - and to a lesser extent Desqview and similar were the competition for Windows, until later OS/2 was as well.
Until OS X, laughable. iOS has done exponentially more for Apple than OS X has or ever will.
I must be alone in the world but I actually dislike OS X a lot. I had been forced to work with Mac OS in several iterations of my life (I believe my earlier contact with Mac OS was with 7.6 on a Performa) and OS X had been one of the poorest. If Ubuntu weren't that buggy (it just tires me to be fixing video cards problems on every update) it would be years ahead in overal experience in comparison with OS X.