Random relevant factoids:
* Effective AIP either equals Total AIP - AIP Reduction, or it equals AIP Floor, whichever is higher.
* AIP Floor is Total AIP /5 or /4 or /3 for Difficulty <8 / 8+ / 9+, but is always at least 10.
* Destroying the first three coprocessors always increases Total AIP by 60, then destroying the fourth one provides AIP Reduction of 120 / 105 / 90 on Diff <8 / 8+ / 9+. The increases to total AIP increase the AIP Floor by 12 / 15 / 20. The coprocessors are arguably a penalty structure on high difficulty.
* Data Centers provide AIP Reduction of 20 / 15 / 10 on Diff <8 / 8+ / 9+, with no change to Total AIP or floor. The number that spawn is independent of galaxy size or difficulty. A few AI types that seed structures that increase AIP on destruction also seed additional Data Centers to compensate. As far as I know, the number of extra Data Centers is not adjusted for difficulty.
* An alternative to SuperTerminal hacking is just to take fewer planets and to knowledge-hack. In general, SuperTerminal hacking ought to be superior to knowledge hacking, or else the SuperTerminal serves no purpose.
* SuperTerminals spawn only in galaxies with at least 40 planets, and have a slightly less than 50% chance of spawning.