Marshall Greenwald , the Founder of Ionia in this episode digs deep into the souls (backend) of card processing. Marshall's LinkedIn for those who don't know how to use hyperlinks: https://www.linkedin.com/in/marshall-greenwald-9480351/ Ionia's website: https://www.ioniapay.com/ AFT's Substack: https://aftfinance.substack.com/ AFT's website: https://www.aft.finance/ Here are the questions we've covered during the interview: - tell us the rough outline of how the current credit/debit card process...