And not just because they are inside of our heads and really squishy.
Sometimes my brain is not unlike a messed up "Where's Waldo" illustration where the artist forgot to draw him in. Not knowing Waldo is not included in the artwork, I look all over for Waldo with a giant magnifying glass and after hours and hours of observation am still unable to find him. On top of that, I was looking with the magnifying glass outside in broad daylight, so I burned a big hole in the paper.
This is my brain:
This is my brain on confusion:
Got any questions?