It learns differently, it teaches differently. Helps me see the big picture and work backwards to fill in the details. It's literally a space cadet working with little information to create dreams. It's not concerned with what is fact or already discovered, right or wrong. It's concerned with thoughts and opinions of it's own making. (Downfall is obviously that it has no basis in reality.) I am still confused about how this gets confabulated with intellectual development, (the reading and attempted connection of past theories.) Sounds like an urban myth to me.
The Se, helps me relate to the physical world, take things at face value. It doesn't assume anything, it doesn't attach unnecessary meaning to what it sees. It takes in the physical world in vivid detail, reacts to sudden events quickly, pay attention, enjoy every moment. I think Se is associated with "fun" because when you are stuck in the moment all the time, the moment in the external world needs to be made more enjoyable, so the Se dom will create that enjoyable atmosphere to make the world a little bit easier for the moment. Both functions seem to start at the present and work forward, which has it's downfalls.
(I'm referencing what I perceive the differences are, since I can't speak for anyone else.) I don't see why you can't meld the two or vacillate between the two, (besides the fact that the theory doesn't allow for that.)