[CamperBob2]

I don't think there's a good answer to that question, unfortunately. What we're doing now seems to be working for most people most of the time, but it'd be absurd to think there's no further room for optimization. And it seems unlikely that the best approach is more restrictive regulation, given that extremely-useful drugs are going undeveloped for decades.

So... that leaves more flexible regulation as a worthwhile approach going forward. I like the idea of making limited human trials easier to carry out and less costly in general.