There is no uncertainty in this. Hundreds of years of stockmarket movements tell us with certainty that predicting the movement of shares from one day to the next is a mug’s game. Therefore, not only do you not know, you are certain of your ignorance. You don’t know. And, you know you don’t know. Imagine instead the stockmarket were to go up every day for 50 years. After the fact people would say “I didn’t know it wouldn’t go up” and “I didn’t know I didn’t know”. The stockmarket is just one category of things about which this can be true. Get in touch with Research Editors today to discuss editing and supervisory analyst services.