“That’s why the worst possible reaction to a failed intervention is resignation. We may not know enough to improve our lot right now, but perhaps we could figure it out, if we tried.”
From reading the whole post, I gather that he’s truly not advocating some libertarian angle, he really is writing on the observation that policy is hard, and it’s nearly impossible to actually predict all the effects of societal intervention.
From my reading, I’m not sure even sure that he’s advocating caution or reluctance to social policy. Just goat sacrifices!
It is saying, acts must be done to reaffirm the commitment to the goal, the goat is a litmus test as to whether the goal is worth it. Not to abandon the goal, some things are worth the sacrifice, but to be aware of it.
His whole thing is "we don't understand the world remotely as well as we think we do, and we need to be trying more diverse things (and reliably measuring the outcomes) so that we can understand it better"