All that work for a somewhat anticlimatic endgame.
i'd say the research facilities make prestiege obsolete, but i kinda like it this way more. I still can't use yellow servers, let alone new green since theyve been scaleing up with all the x2 heat/money upgrades so purple is the steady thing.
Imho research buildings need upgrades too, something weird like overclocking tiles. And of course the only way forward from here would be another currency and another line of upgrades.
I personally feel that liquid cooling is at a dead end. It would have a great spot as a hull buffer but it currently requires too many upgrades to make it work.
Overall once you get over the fact that you need to treat it like a minefield its actually an enjoyable idle game.
Endgame QoL features requied though. I spend a minute to figure out if my heat it climbing or falling with these numbers, trying to finetune the heat to leave RP to idle for the night. Could use an indicator if i'm in the green or red.