I'd have to think about this some more. Maybe some examples on a spreadsheet of a few scenarios could help clarify:

1. Working a fiat job, investing it into bitcoin and hodling
2. Building a fiat business by spending fiat and earning fiat
3. Building a bitcoin business by spending fiat and earning bitcoin
4. Building a 100% bitcoin business by spending bitcoin and earning bitcion

Could project out a 20 year scenario based on different assumptions about fiat devaluation, bitcoin appreciation, opportunity cost, etc.

I don't have time to do this now, but maybe i'll return to it later!