Knocking out nociceptors? It's not what I thought about. Knocking them out reduce available infomation to make decisions. I meant deliberate suppression of goal-shifting and brain resource allocation effects of nociceptors activity (in a sense proposed by Marvin Minsky). It is hard to evaluate effects of this change on child's pain aversion behavior, but I can hypothesize that this kind of pain control could be ineffective until "central executive" is sufficiently developed.
Edit: In the case of mild pain this way of dealing with it can be exercised on our current brainware.
This is our monthly thread for collecting these little gems and pearls of wisdom, rationality-related quotes you've seen recently, or had stored in your quotesfile for ages, and which might be handy to link to in one of our discussions.