Posts: 5,017
Threads: 50
Joined: Oct 2010
Yes, it is possible to change worked tiles outside of your turn. I doubt anyone's doing it though, GNP this early in the game is a relatively minor point. Also, everyone is at 5 CY, so they would have to work a fresh water seafood - possible, but unlikely
Good point about known tech bonus. You get +7.5% for every met civ with the tech you're researching. 7.5% of 11 (base beakers) is 0.825, so known tech bonus from one civ wouldn't be worth an extra beakers. But we met two other civs, there's not reason why TEAM couldn't do the same. And if they're researching AH, it's very possible other teams already have it, giving TEAM the bonus beaker
And yes, I think it's safe to assume that it's TEAM with the highest GNP - I don't see a way for a non-creative team to get to 24 GNP at 1 pop