Has the meaning of friendship significantly changed between to-day's society and the days of the hippies?
Friendship for hippies meant free love, orgies, and gay anal sex for everyone including straight men. It was the first generation in human history to have reliable contraception (the pill), and women used their newfound freedom to open their legs for the young horny men with reckless abandon. Scientific advancement allowed for unspeakable sexual deviancy which formed the basis for a new kind of friendship - the "friends with benefits". Friendships lasted as short as it took a hippie to insert his penis into another male hippie's mouth or as long as a lifetime of travel as each one grew into adults with jobs capable of providing for an entire family.
Today friendship is only an abstract thought, a dream, a moment, an accumulation of instagram "followers" or Facebook "friends" without ever communicating with them. These are lifelong friendships that force individuals to constantly maintain appearances while facing the emptiness in their own lives; the dark, desolate, empty world of fakes, lies, and cheats. Your BFF today is someone you just met at a club yesterday, and they're gone in the wind the next. Lost souls with nowhere to turn.