That was a very impressive debut. Public speaking is difficult (I speak from experience) and you performed as though you had been doing it for years. Your remarks about the use of the blockchain as a distributed asset register (i.e. colour coins) were also very though-provoking, even if they went straight over the head of the nice but dim interviewer.

Just one criticism however.  I thought your remarks regarding the Silk Road take-down lacked nuance (to put it kindly). I appreciate of course that as an employee of IBM it is not your place to take any particular position in public on controversial libertarian issues. Equally, as a statement of fact, the notion that  the likelihood of mainstream adoption of BTC by financial institutions  is increased as BTC ceases to be associated in the public eye with the sale and purchase of illicit substances, is probably correct.

BUT your answer also implied that  the crushing of Silk Road was inherently a good thing ("unambiguous good"). Many (myself amongst them) would vehemently disagree. I personally regard it as a disgusting event - the crushing of a safe, voluntary, private market by a bunch of jack-booted thugs.

So I think you need to distinguish in future presentations very clearly between on the one hand the factual impact of such events on the future mainstream adoption of bitcoin and on the other hand the moral issues associated with such events. At a minimum I suggest that you adopt a neutral stance regarding the latter.

Best regards