It’s premised on the logically sound assumption that traditional payment methods’ (namely, credit card) fee structures don’t work for billions (trillions?) of sub-cent machine-to-machine payments.
Who’s going to tolerate paying VISA 35 basis points + 30 cents to pay for a $0.00005 API call? No one.
But the SaaS/AI companies are fine to sell prepaid plans for say, a few hundred dollars a month, that customers then draw down against.
There just isn’t any real proof that we’re anywhere near changing that pricing model.
As for TAM, theoretically massive, but see above.