I mostly have 'chemisty' with people with larger than life personas. That comes through online. So yeah to a big extant it comes through online. People say it can be faked online, and some things can be faked, but if you talk to someone long enough you can figure 'em out.
you pinned it I think. I have chemistry with people on hip because I've talked to them long enough to realize if they are supreme badasses or not. There are people on here I would love to meet in real life.