Another thing to take into account though, which I think makes BTC potential to he spent even lower, is that those spending it will not do it unless they have a reasonable expectation to be paid in BTC as well. So, if I transfer 500k in BTC to pay for a house, I would only do it if I have another asset to sell that I know I will be able to be paid for in BTC. Unless I'm simply liquidating my wealth because I'm bankrupt, or I'm old and don't intend to pass it on, or something.