Originally posted by secretagent:
My stellar astronomy is a bit rusty since college was a long time ago but there are other galaxies out there so perhaps we should change IMTU to IMTG? [Poorly worded on my part...should not have implied that one could hop J-6 from one gallaxy to another in a few years time or even that the other empires should be form another gallaxy and stilll meet...
I can't see why I can't have my own set of empires that eventually might meet and interact --even at the fringes -- with the 7 races in the OTG canon...Some players might freak at the propect but then I would reply that the Azrecs and the Incas were a bit thrown when they met Cortez and Pizarro. 
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Galaxies are big and a long way apart.
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yes, I do remember that part...   
   
 The Traveller universe is an almost vanishingly small section of one galaxy.
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Which leaves other parts of the galaxy to be used and still borrow or use parts of OTU whole cloth, no?
 Even if you wanted to travel to other galaxies, you wouldn't be able to get there with J-Drive technology.
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assuming one was using J-Drive and not some other form of transportation
 So, yes, your stellar astronomy is rusty.
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well, it was 20 years ago.    
   
None of this prevents other empires being out there. In fact, I assume there are.
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as do I. So I think we are stilll partly in agreement here
 For the moment, I vaguely assume than none of them developed the Jump Drive independently, but it is quite possible that some of them may have developed, or be developing, significant interstellar states in the period since they acquired it from whoever they first ran into. 
These are, of course, states that are "just over the horizon" of the known area. Further away, anything goes. Of course, as you get too far away, the chance of meaningful interaction with known space declines rapidly.
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Certainly and I agree with that too.
You can stick human outposts way outside the mapped area, but at this stage you are effectively designing an non-OTU campaign with at most a light sprinkling of borrowed background.
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Which again I have a tendency to do anyway...
 That's fine, but that's also the point where I personally chuck the whole thing out the window and start working from whole cloth.
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And att his pint that makes more sense to me as well. In some ways I think that the Traveller OTU canon became [to borrow a phrase from relatives across the pond] completely buggered.  I can't telll you exactly when but it sort of went from a well thought out galaxy to total mess. [on the priniciple that a camel is a horse deigned by committee].