[whstl]

"But even in that context it was clear that by making some tradeoffs"

It was literally a weekend POC, and Casey Muratori even went beyond the POC part and fixed some emoji/foreign language bugs that were present in the Terminal.

Also, his intent was not to replace the Terminal. His intent was to demonstrate that it was possible to do the optimization in the way he suggested. Originally a Microsoft PM dismissed his suggestions and claimed it would be a "doctoral thesis project" or something.

All this "yeah it's a narrow view" is just moving the goalposts more and more. Not only he has to do a "doctoral thesis project" in a few days, he also has to completely replace a tool that's already written, bells and all? Where does it stop?