It doesn't matter what you think, it's what you do when you read a quality prediction that you agree with... I usually follow it and place a bet.

I don't know what you mean by "construction"... any prediction is ultimately just a prediction. It may come true or it may not. Who knows? That's why we gamble & place bets. It's not like you can "construct" some special system/strategy with some laws & logic that will bring profit in the long run. Or maybe you can? We are all trying different things, but it's not an exact science, the luck factor is always present.