Further, I believe that the cost on the racial tech CAN NEVER BE REDUCED. Even if you've got neural computing and scientists coming out of your ears. Even with all the "free" and reductions in the galaxy, you must still pay the listed base cost of the racial technology (PLUS whatever you would normally pay to acquire a tech. Since color reductions don't apply to racial techs, it makes the most sense to acquire them with the Primary of Technology, instead of having to pay 6+racial cost, or even 8+racial cost if you get it as your 2nd tech while using the Primary.)
The cost of racial techs can be reduced, but only through generic reductions, such as neural computing or science community speaker. Racial techs are colorless so specific discounts, ie. red or blue, does not apply, but generic ones do.