While performing some research to find the last few "bold discoveries" that had more than one technology as a pre-requisite, I decided to tackle Terraforming because it is not clear from the original discussion in this thread which technologies needed to be researched.
I decided to include all the Humanities and the Social Sciences, but nothing happened. Next, I tackled Humanoid Worker Replacements, because one of the results was Improved Morale (on top of Humanoid Workers). Still nothing. I researched everything under Biology > Ecology. Still nothing. I picked Biology > Exobiology because Terraforming Microbe was one of its results. Still nothing. Planetary Sciences > Meteorology seemed like a good choice. Still nothing. Finally, I decided to research Genetic Engineering because its result was the second Terraforming Microbe. SUCCESS! But, this was not good enough.
I started my research all over again, but with Genetic Engineering as the first technology because I confirmed that it was part of the set of technologies. When I researched Meteorology as the last one, it also triggered the Terraforming result. Now, I had two technologies confirmed.
With Genetic Engineering and Meteorology, I started to rethink my research strategy. If terraforming is supposed to change the environment, then shouldn't the technologies that lead to its result be more geared toward an alien landscape? So, instead of including the Humanities and the Social Sciences, I went after Exobiology, Ecology > Alien > Atmospheric; Terrestrial; Marine. Lo and behold, I ended up with the Terraforming result. There is no need whatsoever for any of the Humanities or Social Sciences.
So, here are the results:
- Biology > Medicine
- Biology > Exobiology
- Biology > Ecology > Alien > Atmospheric; Terrestrial; Marine *
- Biology HL > Genetics > Genetic Engineering
- Planetary Sciences > Meteorology
- Computer Science > Artificial Intelligence
- Computer Science HL > Nanotechnology 1
- Physics > Theoretical Physics > Quantum Mechanics
- Physics HL > Nanotechnology 2 > Nanomachines > Assembler
- Physics HL > Nanotechnology 2 > Nanomachines > Replicator > Terraforming
* After researching all three of the Alien technologies, they produce the Meteorology result which should not be confused with the Meteorology technology which produces the Weather Prediction result.
Terraforming is one of the most complicated results in the game. With the list above, it should be possible to get to it at about the same time as Nanotechnology, because they share nearly all the same technologies.
I will be updating my thread on technology research as I get closer to finishing my verifications.