In this talk, Bitcoin educator, entrepreneur Andreas M. Antonopoulos asks which blockchain is the best blockchain, and then shows why that question falls short. He argues that we should choose tools that are best designed for the applications we want to build. but must also understand that what we create may be used by the market in unanticipated ways, and that function may change over time. Form follows function… sometimes. This talk was delivered on May 31st 2019 for the DigitalK conference in Sofia, Bulgaria.