No cognitive dissonance, I just thought your question was ridiculous.
I thought it was quite pertinent, you seem to be suggesting that banks are lending out their customers money without their knowledge. So seeing as you have a bank account, and (presumably) read the T&Cs before signing anything, you'll know this to not be the case.
Your statement;
"They lend you money they don't own, then charge interest on it. How is that not a scam?"
Becomes;
"They lend you money they don't own, but have the owners permission to do so, then charge interest on it, and pay some of that interest to the owner. How is that a scam?"
Which is a bit more accurate.
It's no different to someone getting a buy-to-let mortgage and making money from rent. They don't own the property, but they are lending it to someone in order to make a profit. Unless that's a scam too of course.
