Got asked tonight why #Bitcoin intentionally makes computation cost a lot of energy. Many answers were swirling in my head (just finished Softwar) but I tried to keep it simple and just explain that for the first time, we have scarcity in the digital realm - the energy cost brings scarcity/limitation into cyberspace, and some people think that has some pretty significant ramifications. Hopefully what I said was interesting enough to at least plant a seed for future thought/exploration, since there wasn’t scope for more amid the busy dinner table talk.