you're surely kidding, right?
most futures are backed by some asset. take gold, silver, oil, corn, wheat, treasurys, etc. Except for index futures such as YM, ES, EMD, NQ, VIX
After spending many years in Wall Street and after making and losing millions of dollars I want to tell you this: it never was my thinking that made the big money for me. It was always my sitting. Got that? My sitting tight!