How can we prove the world is really quantum mechanical?

I ALMOST didn’t write this column as a result of I apprehensive that it’d give folks the mistaken impression about quantum mechanics. So let me begin by saying that I wholeheartedly consider that quantum mechanics is an accurate description of actuality on a micro scale. If there are limits to how appropriate it is, these are prone to contain questions on how you can mix quantum mechanics and gravity, which we have up to now been unable to do with a testable mannequin.

Here …