Speaking on The Pat Kenny Show, Lagarde underscored Europe’s dependence on foreign digital payment infrastructure. “Visa, MasterCard, PayPal and Alipay are all controlled by American or Chinese companies,” she noted, arguing, “We should make sure there is a European offer.”
Mainframes have nothing to do with this.
RISCV is still just a computer - would work just fine on a logical level. Raw compute would be an issue with today’s hardware.