About 56,000 people control three times as much wealth as half of humanity. Here’s one way to illustrate that

Cruising around on private jets, the ultra-rich are the world’s financial elite – but how many people actually occupy this exclusive wealth club? Could they all fit into a floating mega-yacht, or is the group much bigger, possibly the size of a dazzling mega-rich city?

Thanks to an inequality report out on Wednesday, we now have a snapshot of the size of the topmost layer floating above everyone else – the 0.001%.