... or they can build it as per Whipsnade's low tech tools/high tech knowledge, but either way their TL is no longer 1-2.
Ahhh... now I understand why you haven't been able to get it!
I should have picked up on the problem sooner too because Hans Rancke had the same misconception when he and I discussed the concept via e-mails all those years ago.
Let's step back a bit, Kilemall, and think about this question:
How does the IISS assign a tech level to a world?
Putting it another way:
When can you say a world has moved from TL X to TL X+1?
What do the Scouts do? Are there certain key technologies? Certain hallmarks? Is it a sample basket of a few dozen advances that stand in for the entire technological spectrum? Is it a percentage game instead? Once you hit 99% or 90% or 50%+1 you've advanced a tech level?
How do they do it? What do they measure? There are literally hundreds of thousands (if not more) of technological processes. Do you have to be able to do them all at TL X to be considered at TL X?
MegaTraveller seemed to suggest that you didn't. It introduced twenty or so broad technological "families" which could be rated at levels higher and lower than a world's "base" tech level. Apparently a world's tech levels can vary somewhat, a little higher in medicine, a little lower in watercraft, and so on.
Sadly, even with a world's base TL divvied up into dozens of categories, the
$64 Question still remains: When you can you say a world has moved from TL X to TL Y?
I don't have any hard and fast answers to the questions I posed. I just asked them all to set up a
Gedankenexperiment of sorts examining the "retro-tech" concept. Ready?
Fred and Barney are living at TL 1.
Everything they do uses TL 1 tools and ideas with the
sole exception of making gunpowder, which they use to blow up stumps in their fields. Fred and Barney are making and employing
one TL 2 technology.
Does that one technology mean Fred and Barney live at TL 2?
Set up the same series of questions; Fred, Barney, TL 1, all of it. Except this time, Fred and Barney are making crystal radio sets. The Imperium has observation sats in orbit. Fred, Barney, and their neighbors listen to telemetry from those sats thinking it's the gods talking.
Does that one technology mean Fred and Barney live at TL 5?
You know what the answers are and those answers address your misconceptions regarding the "retro-tech".
Those TL 0 and 1 worlds using "retro-tech" methods to manufacture low-tech versions of mid-tech ideas are only doing so with a
minuscule fraction of the full mid-tech technological spectrum. While some items can be "retro-teched", many more mid-tech items simply cannot be built with low-tech tools and the low-tech versions of even more mid-tech ideas don't provide enough utility to adopt.
For all it's blackpowder firearms, animal-powered railways, compasses, semaphores, crystal sets, and other "retro-tech" stuff Pharaoh-III lives at TL 1. Whether it's a dozen "retro-tech" items or a hundred "retro-tech" items, it doesn't matter because it's all just a tiny slice of any given tech level's full spectrum. Making a radio, using a compass, or puddling steel in clay cupola the size of your palm isn't enough because there are too many others things that need to be done too.
Have fun with your games.