By the way, I'd like to talk about something concerning regarding production creep. I did a quick checkup regarding production bonuses on each civic category, and I managed to list out the max production bonuses you could get purely from civics, buildings excluded:
25% + 50% military unit only (republic)
25% (single party)
15%/33% (caste/hive, depends on if you'll go for corps)
10%/20% (corporatist/planned, depends on if you'll go for corps)
20% buildings only/20% military unit only (free church/intolerant OR personality cult)
25% (superhuman)
75% military unit only/-50% + 150% military unit only (conscription/mobilization)
10% (protectionism)
Then, you stack up everything based on if you're going for buildings or units, and if you want to pursue corporations or not:
25 (republic)+25 (single party)+15 (caste)+10(corporatist)+20 (free church)+25 (superhuman)+10 (protectionism)=130% (fully geared for buildings, allows corporations)
25 (republic)+25 (single party)+33 (hive)+20 (planned)+20 (free church)+25 (superhuman)+10 (protectionism)=168% (fully geared for buildings, forbids corporations)
75 (republic)+25 (single party)+15 (caste)+10(corporatist)+20 (intolerant OR personality cult) +25 (superhuman)+100 (mobilization)+10 (protectionism)=280% (fully geared for units, allows corporations)
75 (republic)+25 (single party)+33 (hive)+20 (planned)+20 (intolerant OR personality cult)+25 (superhuman)+100 (mobilization)+10 (protectionism)=318% (fully geared for units, forbids corporations)
As you can see... things can get easily out of hand. One could build himself to be the ultimate productive behemoth, outpacing everything else in the game, due to taking advantage of the production creep. This needs to be fixed.