If you believe this, and I am not sure about 800 but feel pretty confident about 3500 to 4500, then purchase SDS, etf double when it hits around 65 or lower, buckle your seat belt and enjoy the ride, well when it hits 150-175-200.
I like SKF also. The last big downturn back in Feb or so, it went from 105 to 250 in about 2 weeks. It’s now 58. I love its wild volatility.