A formal notification that condition "Argh!" exists

[james_davis_nicoll]

You cannot surround a star with a solid dyson shell and have people living on the inner surface/ Objects on the inner surface will have no gravitational attraction to the shell (all the forces from the outer shell cancel out) but they will have some measurable attraction to the star at the middle. This leads to a situtation technically known as "bad" as all the loose objects on the inner surface fall into the star.

Thank you.