I think it's very difficult. You're looking at losing significant money 9 years out of 10. (Or 20 years out of 20, who knows? It's black swans baby.) So you can

I think it's very difficult. You're looking at losing significant money 9 years out of 10. (Or 20 years out of 20, who knows? It's black swans baby.) So you can only do this with a very small amount of money. How much time can you afford to spend managing say 3% of your total liquid assets?