“This is a place where common sense has a really important role to play. You’ve got a situation now in which you have certain kinds of exchange traded funds, one that is focused on bitcoin futures, and the SEC has approved that, the SEC is given it the seal of approval,” he said. “In order to do so it had to make a determination that that giving this approval was consistent with the securities laws, and in particular, that that there wasn’t a sufficient underlying risk of fraud and manipulation.”