Who will get hurt? Everyone. But it’ll likely be the world’s banks, where even little mistakes can create big problems, that suffer the most pain. The European Banking Authority estimates that the average large European lender still has 27 times more assets than it does equity. This means that if the stuff on their balance sheets (including bonds and other securities priced off Treasury yields) turns out to be worth just 3.7pc less than was assumed, it will be time to order in the pizzas for late night discussions about bail-outs.