This is very interesting. I follow your logic for products builds on top of blockchains (e.g. smart contract types of apps). But for protocols like Ethereum or

This is very interesting. I follow your logic for products builds on top of blockchains (e.g. smart contract types of apps). But for protocols like Ethereum or Stellar, how do define "future cashflows"? Do you use cost of transactions? Or what is the thinking there?