Life on a planet with stronger gravity is harder than you think. How would you adapt? Up the gravity on Earth by just a little bit, and you ruin everything. If Earth’s gravity was just 5% stronger, the increase would warp our planet’s near-perfect circular orbit into a tighter elliptical path.

Summers and winters would become a lot harsher, the intense climate change would spark widespread famine and would likely collapse the world economy. And yet, there might be some survivors. That’s just from a 5% difference. What happens when Earth’s gravity doubles? Let’s imagine that gravity doubles at a rate that allows us to keep our lives so we can try this new world out. Well, to be honest, there isn’t much to look forward to.