I think this is key to make progress in any learning environment, i.e. to find a group that one presumes as being slightly better than oneself. It seems to push

I think this is key to make progress in any learning environment, i.e. to find a group that one presumes as being slightly better than oneself. It seems to push at least myself to try harder and become better. But of cause the gap shouldn't be too large, otherwise it is annoying for the group and demotivational for the oneself.