I doubt that for credit cards. Carrefour or pick your favorite supermarket chain alone probably generate hundreds of transactions per second worldwide during pe

I doubt that for credit cards. Carrefour or pick your favorite supermarket chain alone probably generate hundreds of transactions per second worldwide during peak periods, and there are tens of major supermarket chains you've never heard of. Add regular grocery stores, cinemas, etc, I'd be really interested in an order of magnitude, but at peak times it has to be in the tens of thousands if not low hundreds of thousands. For crypto I was trying to be super generous, I know they're incredibly slow.