Changes

The canon says little about how people get around on a [[planet]] in that future era. (Getting around in [[space]] presents only one possible environmental problem. The chief problems of space travel have to do with trespass or passing through someone else’s [[war]] zone.) And it says nothing whatever about how human beings moved away from the fossil fuel economy the producers obviously hate.

The canon says little about how people get around on a [[planet]] in that future era. (Getting around in [[space]] presents only one possible environmental problem. The chief problems of space travel have to do with trespass or passing through someone else’s [[war]] zone.) And it says nothing whatever about how human beings moved away from the fossil fuel economy the producers obviously hate.

Nor do they describe the sources of energy or how United Earth society acquires that energy. Do they rely on new technology they also “scored” from other Federal member societies in exchange for stopping their various wars? No one says.

Nor do they describe the sources of [[energy]] or how United Earth society acquires that energy. Do they rely on new technology they also “scored” from other Federal member societies in exchange for stopping their various wars? No one says.

= Theoretical physics =

= Theoretical physics =