Sure, but not many times a second
replyEvery build system ever says hello.
replySpawning processes should not be on the hot path of any program.
replyWhy? That's a very useful processing primitive.
replyIt’s a hack with many disadvantages. Sometimes a hack is the right answer, but the kernel should it add a primitive for it.
replyShould bash link in every program the user might want? Load them up as dynamic libraries?
replyIt ends up on the hot path of programs that use process isolation aggressively
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