Yesterday's Toothpicks are Today's Baseball Bats: fMRI ≠ 42

Another in a string of reasons not to get too enamored of the idea that fMRI scans are scientific mind reading. Turns out they miss a lot activity that might be important.

"These papers illustrate the fact that conventional fMRI is a blunt instrument that often only tells us about the most straightforward events that happen in the brain. A bit like how we only hear the shouts and screams from through our neighbor's walls, not their normal conversations, which aren't loud enough to reach our ears."

Source: http://neuroskeptic.blogspot.com/2012/03/brain-scanning-just-tip-of-iceberg.html

For the Douglas Adams impaired, 42 is the answer to life, the universe, and everything.