We actually can. It's called speculation for a reason. If predictions don't play out how people were thinking it would, they will adjust it so they have a better shot at being right the next time.

It's however a different story if we talk about how much value these predictions hold, which is pretty much zero. This is actually what makes even the best traders in this market lose out ~ there is just no way to predict it.

Plain gamblers are lucky and bank on certain opportunities one day, while chart analysis guys completely miss the boat, and then a week later the same situation repeats, but then vice versa.

I'm glad that I am in for the long term and don't have to go through all that.