It’s a statistic, not an absolute, obviously 4 is probably the minimum. It’s a rule of thumb and there to say “2 or 3 probably isn’t enough, it takes at least 4

It’s a statistic, not an absolute, obviously 4 is probably the minimum. It’s a rule of thumb and there to say “2 or 3 probably isn’t enough, it takes at least 4 AND government oversight” otherwise, uh, capitalism finds a way [to cheat]