It's less likely to have an omnicidal maniac in a group of 100 people than in a group of a few billion people.

That assumes you have no prior knowledge of either group.

	▲	red75prime a day ago \| parent \| next [-]
		Which prior knowledge do we have? A group of engineers managed by public figures that show no signs of omnicidality. A large group of people of all walks, which is very hard to vet.
	▲	xvector a day ago \| parent \| prev [-]
		No, this is just basic probability.