Last week, President Obama proposed an initiative to map the complete structure and activity of the brain. "As humans we can identify galaxies light-years away," he said. "We can study particles smaller than an atom, but we still haven't unlocked the mystery of the three pounds of matter that sits between our ears." I'm all in favor of the effort, especially if it can unlock one particular mystery of those three pounds that was very much in evidence in the days following the president's proposal: How can the human brain not perceive something that's right in front of it? I'm talking about the massive jobs crisis in which the country remains mired. You might think that, given the obviousness of our most urgent economic problem, the president's budget -- details of which were released only a few hours after the jobs numbers -- would naturally focus on this problem. But if that's what you thought, then the three pounds of matter between your ears led you astray.