This is seriously one of the best changes of the new patch. It seems totally obvious that this was entirely WAD, but nice to see the logic of it spelled out nonetheless...
This logic is wrong. Upgrade costs 50 MP, while coring and diplo-annexing is at most 10. Since AI will now develop land, there is more not less pressure to grab as much land as possible. So I would still try to conquer as much a spossible, but now I will be sitting on overextension and lack technology more. I am really puzzled by some of the forum responses. The fact that you make one thing costly doesn't mean that you would do another. It's just a deterioration of utility.
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