I am coding since the mid-80's and after my GNU/Linux zealot phase I went back to the GUI worlds of Mac and Windows, because although they have their own set of issues, they are closer to the Xerox PARC ideas than any other UNIX clone.

After becoming a big Oberon and Smalltalk fan during the university, I started collecting Xerox PARC papers and imagining how the IT would have looked like if those ideas managed to win the market the first time they tried to go commercial.

Instead we had to wait for Bret Victor and MathBox creator as you say, for bringing those ideas back.