people find it so hard to understand space time that newtons gravity is used instead even though space time is a better model.
We automatically think that gravity is pulling a planet. The sun pulls the earth and this is what makes it orbit. the reality is that this is wrong. Gravity is geometry. What the sun does is warp the space time fabric around us which then pushes the planet into orbit around a star
einsteins theory of general relativity is probably the greatest work of art that mankind has ever produced
"The mass of men live lives of quiet desperation" - Henry David Thoreau.