Since long time ago I don't understand why my idol (who I follow) , always told there is not important to predict the market, you can make money without predict the market, when you know volatility you can made huge money from it. He teach about

Yes I don't understand how I get advantage of knowing the price is going to go up or down like crazy.

Now what I understand is volatility is easier to predict than price and there is derivative option we can get advantage of it.

I will going to write what I understand about option trading here soon.