You're tellin' this to a philosopher, Mr. I can assure ya I ain't no scientologist, nor do I believe science is everythin'. I was just implyin' that since the discussion we were speakin' of was purely a scientific question, philosophical debate wouldn't get us much closer to any sort'a decisive answer at this point in time. Or any point in time, any time soon.
I believe friendship is quite explainable. Just as science can define how love works, I'm sure the same could be done for it too. Doesn't mean either of 'em are any less powerful than humankind has previously believed, 'course.