contactless payment have been around for awhile and it's certainly not something new. If we could use a different sort of payment, ie. bitcoin or eth for cross-border purchases, that will fundamentally change the game of economics. Imagine checking your phone on the internet, realizing that a TV cost 200 bucks cheaper (assuming same quality and brand) in asia due to differences in currency fluctuation.

Business owners who are not taking advantage of technology will soon find themselves going out of business.