Thanks for that, TFF. It illustrates the limits of our ability to form sound practical judgements beyond those that have proven most useful throughout our evolution.

If there's one thing that common sense tells us, it's that common sense is an indispensable asset in surviving the vicissitudes of everyday life. Inevitably, it also plays an elementary ( smile ) part in forming hypotheses. But common sense is not quite science. Thank heavens scientists for applying the scientific method, and mathematicians for their rigour.

"Time is what prevents everything from happening at once" - John Wheeler