Traditional banks are facing unprecedented disruption from challenger banks today. So why aren't more of them launching challenger banks of their own? Well, two high-profile examples - JP Morgan's Finn and RBS's Bo - were launched with much fanfare, but both shuttered after less than a year. In light of this, the success of TMRW digital bank by UOB, launched in Thailand in 2019 and Indonesia in 2020, is astonishing. Dr Dennis Khoo, who created TMRW,...