A Linear Regression "channel" helps define resistance and support, or at least the top or bottom half of a range.
I knew a guy that interned with LTCM back in the day. He was doing linear regressions. I've put some up on charts, you could predict going backwards with them I suppose.
only go long in low LRC range, only go short in high LRC range, do this in futures, if you got balls and money, and you wil soon sit on piles of money, you could have made 40points today