payments taking over a day to go through Consider that when you swipe your credit card and get payment approved in a store, that’s a round trip to the mainfram

payments taking over a day to go through Consider that when you swipe your credit card and get payment approved in a store, that’s a round trip to the mainframe back at Visa HQ. Or when you withdraw cash from an ATM. Mainframes are perfectly capable of near-real-time operations at massive scale. The problems you mention are not technological.