I'm gonna try this...
I need to, like, beeline biology by spamming cottages, and then build superfarms everywhere plus a national park... and then 10 artists specialists per city... i'll need a lot of cities... it might work...
More like 9600 GPP. The increment increases to 200 after 10 Great people, then 300 and 400. It is possible, but you probably want either Sushi or Cereal and a map type with lots of resources for the corp of your choice.The last one will need 3900 Great People Points
Maybe...running all those artists, you probably wouldn't need more than 38 great artists to reach legendary status in three cities...
3 cities in the empire total