"Shy away from numbers or concrete analysis during design. Good engineers estimate. Great engineers speculate." "Shy away from numbers": I'm writing a calculat

"Shy away from numbers or concrete analysis during design. Good engineers estimate. Great engineers speculate." "Shy away from numbers": I'm writing a calculator! "concrete analysis": The intersection of Civ Eng and Maths? "Good engineers": Hire estimators. An Estimator is often an Engineer (Chartered) and they estimate. The Estimator is generally rather better than the Engineer in estimating, because it is their specialisation. Of course, I jest a bit but the essay was a bit slack in my estimation. We all have to deal with change on a far more granular basis than daily or even hourly. The world is a fluid environment rather than a static place and we have to live with that and we do quite routinely. What I think our putative expert on change is describing is an approach for dealing with unexpected change. However, I think we deal with unexpected changes all the time and we do it quite well - our senses and abilities show that: Think about how complicated driving a car is.