This question is unrelated to the previous one I asked earlier this week.
There's a post-doc in a lab at my school who exactly fits my research interests-- as in, he is working in the exact subfield of the subfield I like, and he is using the exact techniques I would like to gain experience in.
Is it appropriate to just contact him instead of the professor who manages his group? (I guess, instead of contacting his mentor)
I know there's a question of funding, but frankly for several reasons I'm willing to not be paid, at least for the first few months (and I'll mention this in my email to him).
edit: I know there's some instability with postdocs in someone else's lab (they might just yeet to another lab), but if I get a year with him, I would still love the opportunity. edit: I'm second-year