The third pillar of a third generation blockchain - and probably the most important - is sustainability.

The concept of sustainability can be broken into two components:

1) How do we pay for things?

Crypto currencies are not companies. Even if a cryptocurrency is a security, it's still somewhat decentralized. It's still infrastructure. It's much more like roads and bridges; it's much more like TCP/IP and their protocols. So when you talk about a protocol that's open-source, the idea is to minimize the operational cost of that protocol. Things like putting tolls or intellectual property on the protocol, even if it's well intended, for example to fund a foundation, are likely to be less competitive than other, completely free protocols….