Researching future techs
Once you've researched all the "real" tech advances, all your science is then used to research future techs, which get you points.
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I'm building a wagon! On some other part of the internets, obviously (but not that other site).
The problem is that right now, future techs...don't. Get you points, that is. In a recent game I was going at a future tech every 4 to see how many points I could get. Around Future Tech 7 I checked the histograph. Future Tech Score = 0.0. Marked it as a bug, triple ICBM'ed the last AI city and moved in. Dunno if you need more than seven future techs to have a discernible FT score.