There are actual close friends, and then there are people you know or care about to some degree. Dunbar's number (somewhere between 100 and 250) describes the

There are actual close friends, and then there are people you know or care about to some degree. Dunbar's number (somewhere between 100 and 250) describes the latter. That may include extended family, neighbors, coworkers, your acquaintances from hobbies/bar/church/whatever. They're not all close friends or immediate family, but still people that you sometimes interact with, and might want to contact.