I really did not expect this much resistance on HN to a fairly classical solution to the fermi paradox. Mostly it's spun in a more positive "retreat into virtual reality" type situation but it's the same thing. We have no idea how humans will react to the ability to sate every desire and wish artifically. It's not just hyper-porn and the xbox 720, this would apply to the desire for exploration, solving hard problems,…
Strictly speaking, it's a very small percentage of the world's brightest minds. To imply otherwise reflects a stunning amount of hubris.
If we do some very rough back of the envelope calculations :
There are roughly 1.3 million software developers in the U.S, out of a population of ~306m (0.4%).
Extrapolating that against the global population of ~7 billion, we can round up to ~30 million developers worldwide.
If we define "brightest minds" as those holding IQ scores in the 99th percentile (135+), there are 70 million people with genius level intellect.
While I don't have numbers measuring the IQ distribution across developers, I think we can safely assume that no more than 10% (3m) have an IQ in the top 1%.
Therefore, no more than 4.2% of the world's brightest minds are in fact developing software of any kind. The number can be further pared down to reflect the number of "geniuses" working on generating ad-clicks.