That's nonsense. I translate that to "don't ever try to dig into GCC/LLVM/Linux Kernel, because you won't be able to 'finish' it" There are hundreds projects

That's nonsense. I translate that to "don't ever try to dig into GCC/LLVM/Linux Kernel, because you won't be able to 'finish' it" There are hundreds projects out there that are worth exploring even one will never 'finish' them, whatever that means