If a global downturn is coming, what’s the trade?

No-one has a crystal ball about where the world economy is going, but some things (particularly the Tricolor bankruptcy) are rhyming with 2007. Back in actual 2007 I realised a crisis would happen in the US soon, so I sold USD and bought EUR, which did not go great for me.

Assuming as a premise that a crash was coming in the next few months, what would be the best financial move? Buy gold? Taleb's tail risk fund? Some elaborate options trades? Sell all my stocks and put cash in the mattress? Something else?

by m50d