This is closest to my understanding - "gets energy from being with people" vs. "gets energy from being alone". ZYL is obviously a very social person, but apart from the people closest to him (which pre-canon is just Da Qing) so much of it is performative and involves projecting an image, and I think he needs to recharge from that. Whereas SW is less social overall, but he does go out and keep in touch with people, to the point where someone calling him in the middle of the night about a breakthrough in their unrelated field isn't weird, and I do get the feeling that he gets energised from his connections. YMMV, obviously. :)
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This is closest to my understanding - "gets energy from being with people" vs. "gets energy from being alone". ZYL is obviously a very social person, but apart from the people closest to him (which pre-canon is just Da Qing) so much of it is performative and involves projecting an image, and I think he needs to recharge from that. Whereas SW is less social overall, but he does go out and keep in touch with people, to the point where someone calling him in the middle of the night about a breakthrough in their unrelated field isn't weird, and I do get the feeling that he gets energised from his connections. YMMV, obviously. :)