I see what you mean about the testing aspect.

Let's apply that to the old fleas in a jar story.

(that is the science experiment about the fleas in a jar with the LID ON. They soon learn they cannot jump past the lid (in trying to escape). After they learn this, you can remove the lid + the fleas with STILL not escape. They have given up trying! -- This idea is also expressed with the elephant on a chain example -- attach a strong chain to the baby elephant's leg, then after it learns it cannot break free, you can use a thin rope for the rest of the elephant's life -- because, hey, an elephant never forgets.)

So... with the testing notion, you can add that all of the previous failures need to be constantly *RE*-tested!

Make sense?

-- TW