By November 2017 in Europe you will be able to transfer money almost instantly:
https://www.ecb.europa.eu/press/pr/date/2015/html/pr151127.e... https://www.europeanpaymentscouncil.eu/what-we-do/sepa-insta...
Same day transfers have been a reality for a long time (at least in The Netherlands), the fact that it takes 3 - 5 days here in the US is absolutely insane.