Solum certum nihil esse certi
The only certainty is uncertainty
Pliny the Elder, Historia Naturalis, Bk ii, 7
All projects operate in the presence of risk which is created by uncertainty. Uncertainty comes in two forms. Reducible (Epistemic) and Irreducible (Aleatory). To make Risk-Informed Decisions while spending other people's money in the presence of uncertainty, we must make estimates.
To ignore this is to ignore the immutable principles of risk management, which is what #NoEstimates advocates do.
