[RetroTechie]

Wikipedia says Alef lacked garbage collection, contributing to it being abandoned.

But does Limbo have any 'fatal flaws' like that? Especially compared to Go.

No doubt Rob Pike is a prolific and capable programmer. But seems like he needed quite a few attempts before arriving at Go (looking at C's flaws -> Alef -> Limbo -> Go, Wikipedia also mentions a domain-specific language called Sawzall).

[pjmlp]

Which is another proof, that the professional experience of the UNIX idols, has shaped why Go, and not C all the way.