That's one way to look at it... Another is just the phenomena of fads. No matter how well-kept the garden of slashdot/digg/reddit/HN they all have a time horizon. Just enjoy it while it lasts.
When you cool something down to near absolute zero it can turn into a Bose–Einstein condensate (BEC). http://en.wikipedia.org/wiki/Bose-Einstein_condensate For example at 1.7×10^-7K rbidium turns into a BEC. At 10^-8K perhaps that would turn normal matter into a BEC. Then you would have to be able to get useful information out of a state of matter where every possible value exists at once, and the tool your using to read values warms the condensate past the point of being one. Hey - I think you just invented a quantum computer. Congrats.
On a site note I think lasers are the advanced cooling system of the future!
I live in Mountain View, and the only thing I think this is missing is the outdoor activities that living in the bay offers. If you enjoy hiking checkout http://en.wikipedia.org/wiki/Stevens_Creek_Reservoir You'll be able to see PA to SJ when you get up high enough.
If you dirtbike, check out met-caf or make the trek to Hollister. Totally worth it.
there is another comment that speaks to this ("it comes down to code"), but i'd just like to say - use what ever you can to get the job done, then think about porting/optimizing/frameworks...
TO the question at hand - Yes - php and sql can get the job done... i mean are you building it for 1,000 users? or 100,000? php and sql can handle both...
Code tight and code well, tell everyone else to go to hell