> Even if the market price of crypto is magically stable and the exchanges are perfectly in sync, you're still paying the big-ask spread plus the fees to send the crypto itself.

Today, I can buy USDC/USDT in the US, head to any country in SE Asia and sell it locally there, paying less in fees than I would with USD. No KYC on the receiving end.

Wise is a pain the KYC ass and has a lot of limits.