Quote to take maybe with a pinch of salt. Having been smart enough to invent Bitcoin, one could assume that Satoshi knew that waiting 10 minutes for a block time to be finalized along with a speed of 7tx/s was not going to be practical to go shopping ... regardless of tx fees. Something had to be invented, and this was just not there at the time of this whitepaper
So why didn't he write that instead of being so smart that he knew his followers would retroactively put those words in his mouth? Why not just take him literally and interpret his writings at face value?