Supposedly, gallium is non-toxic, and liquid at body temperature (though not room temperature).
I’ve been drinking brewed cacao (Cacao beans roasted, ground, and brewed like coffee) almost every day lately. So that.
I could make one up, but literally submersing yourself is hard to beat. Um… how about Professional sewage-eating-contest contestant?
Does Lemmy have RES? Is it called RES (lol)?
Not true, see @BitSound’s comment.
It does have to be topologically planar (may not be the technical term), though. No donut worlds.