I could write "I bought the monkey picture" on a piece of paper and put it in a sealed envelope and hide it in a drawer - same effect. It only matters to peopl

I could write "I bought the monkey picture" on a piece of paper and put it in a sealed envelope and hide it in a drawer - same effect. It only matters to people that it matters to. Anyone unconnected to the blockchain that stores this information doesn't give a monkey's about it. Imagine that I and the monkey-picture-owner use the monkey picture as an avatar. They say "you can't use that, I bought it - look at this blockchain". I say "no I bought it - look at this piece of paper in the drawer". In general in society we would then have a court case and a judge would decide, and the police would enforce it. In this case - nothing. There's literally nothing the "owner" can do. If you can't enforce your ownership, in what sense do you own anything?