alt Hacker NewsThere are roughly two orders of magnitude more microcontrollers in the world running code than application processors. GC is not acceptable on a microcontroller due to the extreme resource constraints. The GP post is correct, Go can replace some use cases for C, but it does not replace all use cases and GC is part of the reason.
Go already runs on microcontrollers, but _just like C_, care must be taken to avoid using features that are not compatible with microcontrollers (such as dynamic memory).