How Heavy is a Mountain?

According to this calculation, it can be several billion tons. Smart geometry and physics.

But I also like this answer – as long as you don’t try to lift it up, it doesn’t weigh anything at all. It’s like problems, you don’t deny their existence, and you don’t run away from them. You just don’t carry them around.

Science vs. philosophy. Your answer depends on how you see the question.

(Photo: detail of the “Three Sisters” at the Blue Mountains outside Sydney, Australia.)
Dense