Earlier quoted context omitted.
that's why I said actual money, not USDT - which is absolutely not actual money.
If you don't want USDT, you can trade SOL/BUSD instead. The order book may be a little thinner, but not a big deal if you're not moving millions. While you might claim that BUSD isn't real money, you can just immediately withdraw it as fiat in your bank account, as long as Binance remains solvent. Or if you're still uncomfortable with BUSD for whatever reason, just trade e.g. SOL/USD on Coinbase.
What is the depth of SOL against USD? Not against USDT, not against BUSD, but against actual-money dollars?