If the majority of us were looking at the same chart and a general direction of the market, guess who will see that, and take advantage when opportunity awaits. It's the seasoned vets. They've been there, done that. The finance guys shorting the markets for a living. We could argue speculation, math and politics all day long, but, what's been done has been done. None of us have crystal balls. One instrument we access to is past history. We can see that they are real numbers. But they are in the past for everyone else to see..
This is true, but the thing is some traders are better than others to make "Predictions" according to what happened on the past, because sometimes/ most of the times there are patterns and they follow them and most people do not get to see the pattern. but by studying past charts they see that and make the right decisions based on them, so for a trader past is extremely important as I see, we cannot neglect the past when it comes to the market.
not saying it completely depend on the past, but most of the times they follow very very close patterns.