Depends entirely on the policies of the merchant from which you’re buying goods. I have to admit, I had to read a couple dozen research papers about (theoretica

Depends entirely on the policies of the merchant from which you’re buying goods. I have to admit, I had to read a couple dozen research papers about (theoretical) attacks on Bitcoin before I really understood the nuances. I’m expecting main chain transactions to be relatively expensive, but off-chain solutions can still be cheap. Yes, this requires some trust of a third party, but for small transactions that’s probably unavoidable. Not all transactions are created equal, and trustless settlement is expensive.