Things I’m actively investigating:

- What causes a protocol to win against another protocol?
- How do you recognise, early in a project’s life, a team that is likely to impede the success of a protocol? (Note that I’m not asking the reverse, harder question)

Writes http://commoncog.com. Books, protocols, and the art of business, from the perspective of an operator. Yes cats.

To the second question: 

Any protocol that doesn’t take security very seriously has blown up

Any protocol that doesn’t improve via upgrades will see forks that do so

So the challenge is how to upgrade privileged code running on a untrusted hardware, without bugs or security flaws