Yes correct towie, furthermore No. 7 of 10-stockmarket-lessons is;
7/. There are no crystal balls. Tomorrow is a blank canvas.
Investment sails on a sea of uncertainty. It is about probability not certainty. The best you can do, through research, is to improve the probability of success, because nothing is 100% certain.
http://moneymag.com.au/10-stockmarket-lessons/