Yes, that 1-4 was my ordering. Interesting, alternative (external stimulation). As I think about external stimulation though, I wonder if being stimulated by p

Yes, that 1-4 was my ordering. Interesting, alternative (external stimulation). As I think about external stimulation though, I wonder if being stimulated by people is fundamentally different from other stimulating things (art, ideas, the stimulation of being in nature). I'm guessing this is an area where the theory could fruitfully get more complex.