I would love to know how Facebook could possibly die and what might replace it. Google+? Unlikely. It feels like it's somewhat unreachable. I'm sure that perhap

I would love to know how Facebook could possibly die and what might replace it. Google+? Unlikely. It feels like it's somewhat unreachable. I'm sure that perhaps in 25 years time, something else will have replaced it but what and how, I would love to know.