in the last patch, tech victory got "nerfed" because the other races now see you going for it and start to dislike you
this is very, very good but imho it doesnt fix the real issue with the tech tree (and tech victory)
for this victory, you just need to research one tree
this would be fine if this tree was by far the most expensive, but it isnt
to be clear: it is the most expensive, but not by far
imho the weapon techs are just too expensive, its so much easier to research tech victory then to research through 2 weapon trees, not to mention that AFTER you researched through those two (or even one) weapon tree you still have to build those weapons and go conquer everyone while the game is won after researching the tech victory
the tech costs are just totally imba
i see two possibilities to fix this:
a) make tech victory a LOT more expensive or make weapon techs a LOT cheaper (like shield techs)
i dont like the weapon tree anyway, so many useless in-between techs, i design a ship and 2 turns later i have a better tech
that totally sucks ! i dont want to upgrade my stuff every 2 turns and i want to reach a point where i an say "i got the best weapons available, lets go and conquer" and i want that point not to be after i could have research tech victory 5 times

change tech victory to something like in the civ games or gal civ 1
maybe have it split into parts: tech victory research part, tech victory social part, tech victory military part
for a whole tech victory you have to research its 3 parts, earch part being at the end of a tech tree (military tech victory at the end of each weapon tree, social part at the end of the influence and the diplo tree and so on)
so the player still does not need to research through the whole tree to get all needed tech victory parts but he needs to research at least one whole weapon and at least the diplo OR influance part of the tech tree to be able to achive tech victory
i really like that idea

maybe even make more parts, one industrial or defense or starbase-tech-related or something like that