Adam Back's recent "sidechain" concept for the so-called Bitcoin 2.0 infrastructure gives a very compelling answer for what scarcity and acceptance is might look like in the future, that is so beyond any of the kinds of discussions we've seen so far.
I am ready to learn more about the "sidechain" concept & Bitcoin 2.0 infrastructure.
Do you have a link with a good starting point?
Here is one:
http://letstalkbitcoin.com/blockchain-2-0-let-a-thousand-chains-blossom/