As to porn causing impotence, it DEFINITELY does!!! Probably not right away; probably not in every man, but looking at porn leads to impotence because there IS NO SUCH THING as a perfect "10"...
And here I thought it's because peole jerked off way too much..
Uh hem, anyways.. As far as a collective consciousness go, some may say it already exist - but it is just not very self aware, but it's there just in the sense that there are certain common mental patterns in the collective. Or for that matter, the electronic connectivity is just a reflection of something happening with that collective consciousness.
We don't know for sure how it'll turn out, in the long run it may be nice but this kind of behavior clearly shows that we're working with very low common denominators. I may have posted this in another thread a while back but it's relevant here:
Children want attention. Therefore, young adults, in their newly extended childhood, can now perceive themselves to be finally getting enough attention, through social networks and blogs. Lately, the design of online technology has moved from answering this desire for attention to addressing an even earlier developmental stage.
Separation anxiety is assuaged by constant connection. Young people announce every detail of their lives on services like Twitter not to show off, but to avoid the closed door at bedtime, the empty room, the screaming vacuum of an isolated mind. -Jaron Lanier, You Are Not a Gadget
He actually doesn't say it's all bad, but referred to it as a kind of neoteny which is potentially positive in that we are not so instinctual and continue to learn, so for that matter even habits are not necessarily that rigid. But if people are so used to the structure of the networks that they don't take on new learning, it becomes very dull and the great connectivity we have would just become a way to reinforce those lower instinctual traits, which is no doubt why there's these mob dynamics and such.