Daybreak

ok so from the reading i do.. the whole point of the game is cooperating between nations/players to make the earth better.. but what about when its just 1 person... 🧐 would it be 1 single nation burdened with the task that a whole world would get in 2-4 player game? or would the 1 player just play essentially a 2 player game but handling 2 "players" alone?