people would have designed a shopping cart use-case as a single SQL transaction that would last maybe 10 minutes This problem was solved in 1965 by CICS for th

people would have designed a shopping cart use-case as a single SQL transaction that would last maybe 10 minutes This problem was solved in 1965 by CICS for the use case of "you're on the phone to a travel agent and they're finding you a ticket on their terminal". No "10 minute single transactions" anywhere... In the web age, you want stateless services and HA Those who forget history are doomed to repeated it.