"GypsyComet wrote: The RAW for Port and TL make more sense in the framework of a large trading
TL regardless makes no sense. Star port can be anything as you state, in a Large Empire.
You made no specific case for TL that holds any water. Only a statement of that is how it would "work". That isn't logic but, simply a statement with no supporting evidence.
If you change assumptions with no underlying logic, you get, illogic.
E.G. - civilizations forming in a system of a blue dwarf have +6 to TL score.
That IS a change in assumption. But, has no logical basis. I'm not saying the TL is impossible. It just makes no sense as presented. After studying all major canon on the subject that has come since the 3I was formalized, there is no logical explanation given by Marc. If you have read one from him you should let us know so we can correct assumptions. Mybe I missed a mag article by him in the '70's.