Why can’t we make a material that isn’t affected by gravity, then make a spaceship out of it.
Example, only a few materials are affected by magnetic fields, most are unaffected.
People say anything with mass is affected by gravity, I disagree, you should be able to create a material unaffected by the gravitational field.
You would just need to use stuff like pic related
https://scitechdaily.com/new-2d-materials-exhibit-exotic-quantum-properties/