Più Freddo
From space, earth is blue
Is it trading writing that puts the philosophy hut pop as a more likely outcome, I think when a hut is popped the cheapest not currently being researched tech comes up. With expensionist Russia and America in the game.
The suggestion was that there are exceptions to that rule, which come into play when the human player goes for Philosophy "too fast".
One also has to consider the research choices of the AI, that could be tweaked as well. Scandinavia seems often to go for Writing after Alphabet, that is always a risk for the Slingshot. Others could be told to as well under certain circumstances.