Read 'Central banks prove Einstein’s theory': on.ft.com/1pwNEQG<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />John Authers looks at the evidence that the US is emerging from a brief, brutal bear market — while the rest of the world is still in a much longer one<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
