Just as the title states. How do you guys think a country with its only economy being BTC look like? Would it look like how western countries are of today, some Cyberpunk future, or maybe just completely mess up? Honestly, I think it'd look something like the current state of western countries, as if the only currency allowed is BTC, then in theory it should always balance out and be flexible.
With cryptocurrency in general (i.e. all the coins we have) it would look much the same as now, except rather than use a credit or debit card, you would use a QR code to pay with the cryptocurrency of your choice.
If bitcoin was the only cryptpcurrency and indeed the only currency in existence, we'd be in a deflationary recession as everybody would be hoarding the scarce currency and nobody spending. We have been spared that fate because a) fiat is in abundance and b) other cryptocurrencies are in abundance.