I keep going around in a loop on the value of BTC.

When I think of how the dollar has become the world reserve currency, I think of a system (modern banking) that has allowed this vehicle ($) to gain traction.

We can provide a $ market cap of the banking industry, etc. but its value/market cap only exists because of the system/dollar in place.

Maybe this is a weed-induced rabbit hole, but it came up when my wife asked me what if Bitcoin consumes the rest of the market in dollar terms. I said it would, which led to the discussion of Bitcoin replacing legacy finance and then figuring out how you would value a system used solely to provide value and stability.