Earlier quoted context omitted.
You're comparing a risk-free rate (government bonds) with a rate on risky investments. Not really comparable at all. You can also find high-yield bonds (aka junk bonds) denominated in USD. Also real interest rates are set by the market not governments. Monetary policy has, at best, only small effects on real rates (in theory it should have none).
> You're comparing a risk-free rate (government bonds) > with a rate on risky investments. I don't think so. What is the "risky investment" here? I compared lending of different currencies. In the case of Euros or Dollars, the lender is a government. In the case of crypto, the lender is a smart contract. Both are assumed to be reliable.
Well, you tell me. Where do the profits come from?
> In the case of crypto, the lender is a smart contract.
That doesn't make sense. The smart contract is a contract, that is, an agreement between two or more parties. An agreement is not a lender. The lender is one of the parties.