It's so weird that cracking futuristic tech we don't currently have like fusion takes barely more time than tech we already have. Like, you'd expect it to cost two-three times as much as normal technologies but nope, it takes 3 turns to get fusion reactors.

Also btw Fusion reacters are broken currently - the 50% pollution reduction actually inhibits you when your pollution is in the negative. I had a city with all the renewable sources with -9 pollution except Fusion reactors were generating pollution rather than reducing it, since it was already a negative number.

It is also strange how research institute have no prerequest, meaning you can get fusion power very quickly.

Could not agree more. I finally got far more into the tech tree last game, and was shocked that I JUMPED to end game techs soooooo easy and fast.  But I never had time to build most the new buildings/units that they unlocked.  And even with a forest in EVERY single hex on every territory I had; and building almost no building that creats polution; and getting FRs; still showed I was top polluter.  

Yes i also feel like the End Game Techs are way too cheap. Like whenever i can get research them i will go for them, because they don't take longer than the normal techs. If i enter the contemporary Era and i am first in fame i will just rush the Eng Game techs and win the game. So i never stay in the last Era for more than 20 turns. Really sad, hope it gets changed like how it is in Endless Legend.