Debt is slavery. Fiat encourages debt. Therefore, fiat encourages slavery.

When someone is in debt, they have promised to pay their creditor back with interest. Basic morality dictates that you pay it back according to the terms of the agreement. However, various decisions could hurt people’s ability to continue paying their creditor back. This could, for example, keep someone in a job that they otherwise wouldn’t stay in because “it pays well” (a.k.a. it pays enough to pay for their giant monthly debt payment).

Debt is central to modern central banking and money 1 2. I think even your economist neighbor would probably agree.