Great points, HappyCoder!
I definitely appreciate you taking the time to comment here.
I was hoping for density to be part of the strategy aspect, but you make good points about it. I am leaning towards it being something that requires the user to find "gravity wells", which up entering increases the density a certain amount. Meanwhile, at all times, density is slowly decreasing towards 0%, so it then becomes something not particularly under the player's control.
However, I will definitely consider removing it to because you make good points about it. Thanks!