Lehman Brothers’ collapse into bankruptcy in September 2008 already sounds like an echo from another era. Amid the blizzard of reflections and interpretations published in the past few days about what ­became the largest bankruptcy in US history, it seems an event from a distant place.

It was a time when making money in shipping seemed to be easy, China’s commodities boom was a novelty, the iPhone was in its infancy and Donald Trump was merely a second-division television ­celebrity.