Question 1 of 4: Rob Armstrong, Katie Martin and Martin Sandbu answer questions from the FT's Instagram followers: "If you were to explain to a layman, how did the financial crisis happen? Could it have been prevented?"<br /><br />► Subscribe to FT.com here: http://bit.ly/2GakujT<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<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
