 Andreas, once you made a point, I think I heard you say something about the layering of Bitcoin where you've got the lightning network on top, and I think you made a point, at one point, saying that it was kind of a hybrid, so that lightning represented a kind of proof-of-stake aspect. Was that an argument you would make? Yes, lightning does incorporate some elements of proof-of-stake, because in order to create a lightning network, lightning is this overlay network that allows you to route transactions over Bitcoin as a second layer, very fast at very, very small amounts. But in order to do that, you have to build channels, those channels lock up money, and if you engage in the lightning network effectively, you earn fees. So lock up money to earn fees, that sounds like a proof-of-stake to me. It does introduce the kind of hybrid mechanism for committing funds to a system that supports the network and earning some reward in return for that by securing transactions. I would still call that a proof-of-stake system.