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I think about this all the time (the broader point, not beer specifically).
What kind of better roads would we have? I'm confident we wouldn't tolerate 40,000 traffic fatalities a year on private roads.
What amazing health services might exist?
What about radically innovative energy generation?
How clever might private security and arbitration be?
We already know how awesome private money is. Every regulated and government provided sector might be as suboptimal as fiat is compared to bitcoin.