Visa's pricing power and duopoly are in trouble as merchants resist 3%+ interchange fees and new ways to shop emerge. If Visa loses the CCCA fight, its entire moat is at stake: opening rails to another network would be a big push toward stablecoins, with agent commerce an even greater push. Australia's fee cut adds global pressure. China's opening is positive but incremental and years away if China follows through, amid domestic competition. x.comÂ