One more .That's if it's ok. Just want to answer your quest…

One more .That's if it's ok.
Just want to answer your question.
There are other ways minners and anyone can generate income other than block rewards, transaction proccessing fees, and coin appreciation.
Babbage clearly explains that people are going to need all manner of blockchain data management services that minners will be supplementing their income by charging for these management services.
But anyone i repeat anyone can access funding of some sort even if they are dead broke , in debt to their eyeballs, to launch an entrepreneurial activity such as providing access of subsets of the blockchain that their business model is concerned with.