I've false started a few games as I learn the mechanics and thus far I've only bothered terraforming the ~2. 0 CC pretty blue worlds. This game I got the surprise of a Dormant in Sol. On Triton.
1) So that means I just learned the hard way about the max 3. 0 Greenhouse factor. Saved and restarted many times trying to figure out why it was (seemed to be) bugging and Greenhouse Gas was not raising temp anymore. . . Finally nailed the right search terms and found a convo about the max factor. So it makes sense that there is a hard limit on how much I can raise the temp. Stuck at -133. Just want to make sure this noob isn't missing another trick to get temp up.
You can raise the temperature either by raising the Greenhouse Factor, or by increasing solar insolation.
2) Never bothered colonizing an LG world before. In order to make use of the % Research bonus from the dormant that I have explored, I need 1M available workers per RF. That's a crapload of LG Infra on a 5+ CC world. I've been using 15-25% of my Industry for over 3 decades and still only managed a mere 9 RF worth of free pop. Orbitals just seemed too expensive for this large a project. If I understand the latest scuttlebutt, genetics is currently not working, so making an LG Version of Humanity is not an option. Has anyone done a basic calculation of the break even on building Orb Habs vs LG Infra on diff CC? Shouldn't be hard, just no reason to reinvent the wheel if the info is already out here.
The threshold is around 4-5 Colony Cost; higher than that and it's cheaper to use orbital habitats. Orbital Habitats are nice because 100% of their population goes into the manufacturing sector, whereas on a high cost world only a small fraction of the population will be left available for the manufacturing sector. Perhaps terraforming small worlds works, but the atmosphere actually bleeds away? I don't recall how Steve said he was going to implement it.
The really odd thing is that Triton's gravity is below the threshold where terraforming is supposed to be impossible; that could be a bug. Also, the max service sector size should only be 2 or 3 million at Colony Cost 9. Still, I suppose if you've managed to terraform it then that would be higher.