Earlier quoted context omitted.
You're confusing professional level with world champion level. How many megajoules will it take to create a world champion Go player using the human brain? It would take multiple brains, each teaching each other. We can now train a professional-level Go player pretty cheaply — Zen Go plays at a professional level and runs on commodity hardware.
I did not actually. I pointed out the approx energy required to get to 1 dan professional then pointed out that a system trained with orders of magnitude more energy was still far less capable. To get to Lee Sedol is still To say AlphaGo or any RL system is learning from self-play is not in the typical understanding of the phrase. It's more akin to evolving with competitions against previous versions of itself, which…
The reason I noted the requirement of other trained professionals for training a human is that those other humans can distill what they have learned over years of play into simple rules. The machine can also use those rules, but the particular machine you are comparing to was specifically trained without any such rules and was required to synthesize them from scratch from historical games and self-play.