> My understanding from the book is that life is impossible in two dimensions I recall that alien species specifically talking about making the transition to 2

> My understanding from the book is that life is impossible in two dimensions I recall that alien species specifically talking about making the transition to 2D. And that the gunner who used the weapon against Earth speculated that this is what their own government figures had decided to do (otherwise the gunner's superior wouldn't have signed off so readily on use of the weapon). I.e. it takes an advanced technology to make life possible in 2D, but it isn't impossible.