That’s a lot of fearmongering with no evidence. Do you have profiler data showing that the microseconds needed to pass a message between a process is a significant limiting factor in a program which is rate-limited by human text entry?
I mean, taking your argument seriously would mean everything should be hand-tuned assembly. Obviously we figured out that other factors like time to write, security, portability, flexibility, etc. matter as well and engineering is all about finding acceptable balances between them. Microsoft has been writing developer tools since the 1970s and in the absence of actual evidence I’m going to assume they made a well-reasoned decision.
I mean, taking your argument seriously would mean everything should be hand-tuned assembly. Obviously we figured out that other factors like time to write, security, portability, flexibility, etc. matter as well and engineering is all about finding acceptable balances between them. Microsoft has been writing developer tools since the 1970s and in the absence of actual evidence I’m going to assume they made a well-reasoned decision.