How Stable Is the Earth's Orbit?

Brian fjord artisan baker and host of the new podcast flaky biscuit on this podcast i'm gonna get to know my guests by cooking up their favorite nostalgic meal it could be anything from twinkies to moms thanksgiving caressic. We're asking the question how stable is the earth's orbit and it sounds like in the perfect world orbits are pretty stable yeah universes in which you have three directions of space like x y z have stable gravitational orbits if you have nothing else going on. There aren't stable orbits in 2d or 4d space wait what like isn't the earth basically going around a flat ellipse are we technically in 2d because gravity gets dispersed in