Numbers aren’t everything
It’s an old saw with me, but Dave Snowdon puts it very nicely and succinctly:
Numbers are good, but they are never the whole picture. Â Its easy to focus on them, they give the comfort of apparent objectivity and used to support human judgement they have high utility. Â The problem is when they replace judgement rather than supporting it. Â Of course in the ordered aspects of any enterprise statistics and numbers can do a lot of the work for you, but in a complex situation they can be dangerous. Â Applied to ordered aspects (boundary conditions, probes and the like) they have utility, but for the system as a whole they are more problematic.