The legal minimum of 1.5% is fascinating, i wonder if it was put in by the credit card lobby. Overall, this change should accelerate evolution in the payments

The legal minimum of 1.5% is fascinating, i wonder if it was put in by the credit card lobby. Overall, this change should accelerate evolution in the payments space. Customers choose the payment type, so when merchants have to eat the fee and hide it from consumers there's little downward pressure on fees. The minimum looks like an attempt to put a floor of 1.5% on the fees. Does anyone know what happens to any payment technology that wants to charge 0.5%? Does a merchant who passes along such fees have to eat it if its less than 1.5%? Or is it disallowed?