Scientist say, that if we took all the almost infinite amount of pages of the internet, trillions and trillions and trillions of pages, images, videos etc. etc. the actual weight would be less than a paperclip – and similarly, even though it seems to us that this world has mass, if you took all of the mass that exists and actually put it together, because really it’s space, electrons are hitting one another, so like blown up balloons, even though the mass is very small, they take up space – all of the actual mass of our entire universe, yourself included, would be contained in a mustard seed, a tiny little seed!