Updated 08/21/2017

Relax, you'll get over it!

   Uncertainty is a situation which involves imperfect and/or unknown information.
   However, "uncertainty is an unintelligible expression without a straightforward
   description".[1] It arises in subtly different ways in a number of fields, including
   insurance, philosophy, physics, statistics, economics, finance, psychology, sociology,
   engineering, metrology, and information science. It applies to predictions of future
   events, to physical measurements that are already made, or to the unknown.
   Uncertainty arises in partially observable and/or stochastic environments, as well as
   due to ignorance and/or indolence.[2] Wikipedia.com

    1.  Antunes, Ricardo; Gonzalez, Vicente (2015-03-03). "A Production Model for Construction: A
         Theoretical Framework". Buildings. 5 (1): 209–228. doi:10.3390/buildings5010209.

   Secrets Revealed! How to Thrive in an Uncertain World  |  LinkedIn, Colin Shaw                   08/17/2017
   By nature, I’m an organized person. I like things clear and orderly, laid out in black and white.
   So, some years ago, as a new senior manager, I asked my boss to explain what my
   responsibilities would be after a company reorganization. I wanted to know, with absolute
   certainty. But my boss just looked at me and said, “Colin, in a senior position you need to deal
   with ambiguity.”
   That wasn’t what I wanted to hear, but in retrospect it was excellent advice that helped me
   learn to handle uncertain situations. It seems especially timely now, as I look at the uncertainty
   of the world around me. From Brexit to rising seas to the future of trade pacts and U.S.
   healthcare, it sometimes seems that there’s little we can count on.

   What is uncertainty?  |  Business Dictionary
   Offers definition for (a) Decision making, (b) Information Theory, (c) Statistics