I think it's a really bad idea. High risk high reward opportunities are essentially gambling. Whereas a 401k is a back-up plan and a safety net. Don't take mone

I think it's a really bad idea. High risk high reward opportunities are essentially gambling. Whereas a 401k is a back-up plan and a safety net. Don't take money out of your safety net and gamble it away (which is a very likely outcome on a high risk opportunity). If you want to participate in high risk high reward opportunities, create a separate account for it and consider it "throw away" money from the beginning. (Your high risk opportunity might pay off, but don't count on it.)