The sciences have greatly enriched human understanding of the world in which we find ourselves, moving us from magical explanations of phenomena to tested and scrutinized conceptual and mathematical models. Perhaps ironically, one of the insights science has delivered to humanity is the vast uncertainty we face when dealing with complex systems – especially living systems.
Mathematical statistics provide a rigorous approach to quantifying uncertainty and places clear bounds on what claims one can and cannot make with scientific near-certainty. When an individual claims certainty on some matter and appeals to ‘science’ as justification, that individual should be compelled to demonstrate how this certainty follows from rigorous analysis, including that the underlying assumptions of the mathematical tools applied are met in the real-world system of interest. Short of this, one can only adopt an attitude of certainty as a non-scientific opinion. We call such an abuse of the term ‘science’ to justify a non-scientific opinion pathological certainty.
When pathological certainty is projected as expert advice to be trusted by non-experts, and when those who would place trust in the supposed expert bear real risks, there is great cause for moral concern.
Simply, in cases where there is vast scientific uncertainty and there exists the potential for severe harm to people and/or the environment, it is deeply immoral to project an image of science-backed certainty when adopting an advisory role to the public at large.