Comment by obstacle1

Sorry, thought my last paragraph covered that. Can any blockchain-backed tech handle the number of transactions per second that current major credit card/payment networks do?

One benchmark is 1,700 tps for VISA. https://phemex.com/blogs/what-is-transactions-per-second-tps

If not, why not? Especially after 10+ years of development and intense VC funding (as is the parent article's point).