Not useless if you can identify and stop the butterflies that cause hurricanes.

The point is that they don’t cause hurricanes, despite the fact that some hurricanes might not have happened if not for the flapping.

I can point to at least one fatal crash that wouldn’t have happened if GPS was unavailable. Would it be reasonable to say that crash was caused by a lack of GPS jamming?

	▲	gpm 24 minutes ago \| parent [-]
		If I know stopping a particular butterfly from flapping its wings prevents thousands of people from dying and devastating effects on infrastructure (the typical result of a hurricane) I don't particularly care if they "cause" hurricanes I'm still stopping it. Philosophers can debate the meaning of the word "cause" all they want but it really isn't relevant.