I don't think we can talk of 20 year horizons with internal tech. And when change happens, it happens much faster. It's only just over 20 years since buying stuff online became mainstream (when did you first buy from Amazon, I ordered books in the UK from the USA in 1997 and Amazon will still show me that transaction in 3 clicks) but that involved huge and violent physical change in the real world... and look at all the malls going out of business now.
Something enabled by a pure computer tech change is going to be quite different.
I think you're exactly right about the big break: maybe it'll be a mobile game, maybe it'll be the #CryptoClassAction lawsuit I'm working on or some other Black Swan event and who knows which chain it'll be on. I'm with @theycallmedan here though, I haven't done his level of research, but what he's saying makes sense.
