If you are willing to trust your bitcoin to an exchange, as many people are, you should certainly be willing to trust your government.
But a lot of people hold their bitcoin offline, in hardware wallets, in cold storage. It's not that hard.
Another feature that bitcoin has, that gold does not, is proof of reserves. Barely any exchanges do this, but this will change with time.
Proof of reserves pretty much makes bitcoin IOUs for the government useless. You can't cheat by printing more.
I think far fewer people will trust their government with bitcoin under a bitcoin standard, than trusted their government with gold under a gold standard.
Particularly after a few governments default.
I discuss this more in depth at
https://web.archive.org/web/20210116135412/https://taaalk.co... (long)
I don't expect governments to cater to the mistrustful, so I don't anticipate governments adopting BTC as their core currency in my lifetime.
Without force, will the government have enough credit?
This is what allows the big re-armaments before / during a war, btw. See for instance Hjalmar Schacht's mefo bills in
https://en.wikipedia.org/wiki/German_rearmament
In this case stealth rather than force but same principle. It's also a lot harder to do stealth with a non-inflating currency that has proof of reserves.
Lending in Bitcoin can happen in two ways: the first is through imaginary Bitcoin (“borrowed from future installments”) in a layer 2, which is what he was describing, although I agree that, unless the government mandates accepting money from that layer, it is hard to make it systemically used.
The second one is to only lend coins that you have. In a deflationary monetary policy, lending is strongly disincentivized, as it would need to beat both the rate you would gain from the value of your coins increasing, and the default risk.
Much of monetary policy is about finding a balance where financial institutions will be incentivized to lend despite the risk (which is already a hard sell even under inflation!) without nudging prices.
It is plausible that a Bitcoin economy in stablestate (once coinbase transactions are no longer) would have very little lending. Is it outside of the realm of possibilities that, in such a world, innovation may decrease, and legacy becomes a more relevant factor for wealth?
https://en.wikipedia.org/wiki/Gold_standard
These times weren't perfect, but no time ever is.
In short there would be less lending than under fiat with MMT, but certainly not zero lending. On the plus side, much more stability, and no hyperinflations, ever.
Seems worth it to me.
Why would it reach more stability?
Historically, cryptocurrencies have been significantly more volatile, not less. Arguments were made back in 2013[0] that:
> this volatility will decrease as Bitcoin markets and the technology matures
But volatility has remained consistent over the past 10 years[1], seemingly uncorrelated to its adoption, market cap, and coin supply. In the same period, USD was an order of magnitude better[2].
[0]: https://web.archive.org/web/20130916231759/https://bitcoin.o...
[1]: https://vlab.stern.nyu.edu/volatility/VOL.BTCUSD%3AFOREX-R.G...
[2]: https://vlab.stern.nyu.edu/volatility/VOL.DXY%3AFOREX-R.GARC...
I don't particularly love the USD, but if I don't pay my taxes in USD, I'll go to jail.
The characteristics of the underlying asset would probably modulate the degree of trust people can put in a government’s IOUs, but considering e.g. the extent of people’s trust in the US (with no underlying), I think it’s fair to say if Bitcoin became this currency, governments would have no problem issuing IOUs for it that people would trust.