[monkmartinez]

I agree. I ask myself this question; "If <x> was to disappear tomorrow, what would happen?"

The answer for Facebook and me, is nothing. If Google disappeared tomorrow, I would be hurting for many services I probably take for granted. I suspect if Facebook disappeared tomorrow, most people's lives would not materially change for the worse. Perhaps they would even change for the better.

[ZanyProgrammer]

I think a lot of people would be better off without Twitter.

[cft]

I think twtr stock symbol may not exist by 2018 actually

[askafriend]

If you really believe that then put money into it.

[cft]

It's hard to short for such a long time, nearly impossible. Common shorts and puts are short term instruments.