Sustainable Trading Strategy ?

[hobbes]

I have been thinking about a good trading strategy but could not come up with something satisfying. Do you have a suggestion?

It should be relatively simple.

Premises:
80% probability of USD/BTC rising above 1000 within two years.
20% probability of price going to near 0 anytime the next two years and stay there.
1 trade per day max, better one per week

Of course it would be nice to end up with more coins than what I started out with but another goal is not to end up empty handed in the worst case.