Some people condemn both lending/borrowing at interest and investing for interest.
I know a lot of different religious groups condemn it. Usually it is in the context of lending to other people (rather than the government). I am not a religious scholar though so I don't want to get into the weeds on what certain text means. People who are close to me in real life I usually just give them money rather than a loan. I would rather not have family or friends owe me anything. If I have a friend that needs a loan, they probably aren't going to be able to easily pay me back anyways. Usually it makes more sense to give willingly vs trying to charge interest to a friend.
Bastiat's broken window fallacy
I actually never learned about this or forgot it. Nice to read a different perspective on opportunity costs while drinking some coffee. 😊 I hope someone tries to write about Bastiat's broken window fallacy one day (Not saying you should but just anyone).
Cheers!