All good science has a certain blind spot, right near the center of its own area of expertise.
Afternoon Variation Listing Red: No playing field is fair without a hidden water hazard round the fifty yard line.
This one lumberjack used to advise his brother, “Always have some back-up read and in reverse.”
Speaking of fail-safe-systems, and general overkill, how about Life providing man with both religion and government!
And speaking as we were also about armadillos, a mister G.T. writes from Texas: “Inasmuch as I am from Ohio, why am I writing you from Texas?”
All human activities are exchanges.