 What about energy consumption? We have a question here as well. We'll start taking an audience question shortly, but there's a good question here about energy consumption. Does that improve over time? Yes, thank you for asking that. I go through this in the book if you're interested. I'll give you the summary, which is that is basically Bitcoin-specific at this point, and none of the other systems that we work on have that. The system we work on is a different system. It's called proof-of-stake, not proof-of-work.