So, we all know when steven is half gem half human. but this time, from another perspective, I think that steven is Completely Organic with the exemption of his actual gem... you know how he already fused with amethyst? when we saw them unfuse, Amethyst's light was (sort of) wrapping around steven. It's like as if steven's organic parts just remained wrapped around Amethyst's body (you see where I'm going here?)...
SO! here's what I think:
Steven's body (except his gem) is fully organic. When he shapeshifts, his gem is probably just adding more light (you know how pearl said "holograms with mass").
When he fused with connie, Their Organic bodies must've just been wrapped around a "hologram".
like this
and that's because organic matter is not polymorphic
(<----- not literally like this, but you get the point.)
It also came into mind when steven said "don't forget mom" in the episode 'Mr. Greg'.
Of course, There's always a downside to theories:
I can't really explain the cat fingers. I think they were alive because their "organic" too? I can't really put my head into it... did you get my point? tell me what you think.Â