Elaine Ou, a blockchain engineer and Bloomberg View columnist, answered questions about cryptocurrencies from Bloomberg Terminal customers in a TOPLive chat on Tuesday with Julie Verhage, who covers markets for Bloomberg News. Since then, bitcoin has skyrocketed to new heights and Cboe Global Markets Inc. plans to launch bitcoin futures trading on Sunday. Here's a lightly edited transcript.Verhage: Bitcoin and other crypto-assets have had crazy runs this year.