Spawning processes should not be on the hot path of any program.

Why? That's a very useful processing primitive.

It’s a hack with many disadvantages. Sometimes a hack is the right answer, but the kernel should it add a primitive for it.

	▲	MBCook an hour ago \| parent [-]
		Should bash link in every program the user might want? Load them up as dynamic libraries?

It ends up on the hot path of programs that use process isolation aggressively