This is obvious and probably too of-the-moment (or worse, totally last year), but I've just come to fear that this really is the future:
The first generation to grow up texting and twittering--always in contact with everyone and living in public--is completely comfortable with the hive mind concept, so comfortable that it just happens organically without anyone even taking notice.
So now the human race is a single consciousness. If you thought the overnight eruption of Wikipedia was a marvel, wait till the same principle is applied by a whole planet to manufacturing starships.
This is what interstellar civilizations will look like.
Individuality is hopelessly outmoded. Resistance is . . . well, you know the rest.
An early design of the voidship Cloudsource.