I get power plant later in that series, I'm not sure this is a bug.
I'm not talking about the power plants/solar, but about the air techs.
The discovery cost seems to increase, so you end up paying thousands just to discover some lvl 1 tech.
Oh, does it ?
Though it's clearly not thousands, I'm late game, and I keep around 800 discovery points (so, much less BP), and techs are always getting discovered this turn (or the next, for group unlocks).
This is not a good design in my opinion.
Yes, it's quite punishing for new players with bad luck-
(also, heavy industry is not nearly as critical as power)
-but it also makes tech interesting and different from game to game.
< Message edited by BlueTemplar -- 6/19/2021 10:32:21 AM >