The nerds come to live in the vibrant and cool city so that they could have some of its "coolness" reflected on them.
Little they know the (fairly new) pretentious residents are everything but cool, SPECIFICALLY in the mission area, where large percentage live their lives believing they are unique & progressive, while in reality they are prisoners of their conceptions - the ones that got seeded in their heads by the companies the nerds are working for.
the truth is that this city is: dead at nights. have a lame hipster wanna-be community. too expensive.
p.s older san francisco residents are extremely nice!