What's the question? Yeah if you buy litecoin at 0.02 and sell at 0.04 you'll have doubled your bitcoin. Who knows (or better yet, cares) what that'll be worth in fiat.

You're thinking about this all wrong. You've come over to a system better than fiat. Why would you go back? If everyone keeps doubling their money and going back to fiat, how would that not give governments even more incentive to print more money?