Google Cloud's London region went down this morning and took UK banking with it.
Revolut lost card payments, transfers, ATM withdrawals, and sign-ins. Lloyds, HSBC, Royal Mail, and Rightmove all reported problems. Cause: a power event in one London zone.
Revolut runs its global systems on Google Cloud. One zone lost power and millions of people could not touch their money.
Single-region is not an infra strategy. It is a bet.