I agree with most of these points except blaming this on processes vs threads. The only difference is all memory being shared by default, vs explicitly deciding what memory to share. With all the emphasis on memory safety on HN you think this point would be appreciated.
That’s fairly new, with threads and processes becoming basically the same. Historically threads didn’t exist, then they were horrifically implemented and non standard, then they standardized and were horrifically implemented, then they were better implemented but the APIs were difficult to use safely, etc etc. Also threads were much more light weight than a process. This shifted with light weight processes, etc.
