In an hypothetical scenario let's suppose bitcoin takes over everything and it's takes 24 hours to do. With this perspective bitcoin started just 38 seconds ago.
Wow this new logic came to me just now while sh*tting... I never knew i was this good at math
https://www.reddit.com/r/Bitcoin/comments/11miaks/we_really_are_still_early/
Hard to get exact figures but let's say that 20% of all BTC in ownership is held by Americans (it's probably less right?) and let's imagine they can really tax 40% capital gains on it all starting from now. That would give them a tax windfall of $72 trillion based on their share of the $900 trillion.
Given that current government debt is over $30 trillion, I bet by the time BTC has "taken all", the USA could not even pay off its debt with that enormous tax windfall.
Insane!