I saw his original Ted Talks a few years ago, and I was really impressed. Today, his system has come a long way since that presentation.
Little excerpt of it that was his response when asked if he was successful in switching completely to Bitcoin:
Quote
yes and no. i demand it where i absolutely can. so for shows, performances and presentations, yes. for busking, it is more of an anomaly. i plan to busk more bitcoin related events as a way of investigating my thoughts on what could happen in the space. i have busked a couple of bitcoin events in berlin already. i make my artifacts available for bitcoin and fiat but charge more for fiat. my exo-voice is €500 in btc but €850 in fiat. so far, everyone that is buying one when i finally allow people to pay me (finalizing the design), is doing so in bitcoin. in my investigation, many people were already curious about it and this becomes an excuse for them to dig in a little.