The 2008 recession was considered a "once-in-a-lifetime" event. it's ironic that we're now experiencing a second.

Sorry, I was being facetious: my second once in a lifetime economic correction :)

Maybe they want to "buy the dip" and bet on a recovery. Or maybe they've been shorting UK Plc somehow :-)

2009 happened.

I imagine op is referring to 08-09 which was touted as the biggest economic crash since The Depression.