> Instant settle felt surprising in a world where bank transfers usually take days. Yeah, that's not "a world" it's just the USA. Parts of the world - EU, UK etc have already moved on from that. Don't assume that the USA is leading edge in all things.
"In a world" is a figure of speech which acknowledges the non-universality of the statement being made. And no it is not "just the USA". Canada and Mexico are similarly slow to adopt real-time payments.
It is wild to tell someone "don't assume" when your entire comment relies on your own incorrect assumption about what someone meant.