Because it said concentrate.
He wasn't concentrated.
Because he couldn't concentrate.
Three. One to hold the light bulb and two to spin the ladder.
Artificial intelligence!
In case she wanted black coffee.
He took a can of orange juice from the freezer and made a pitcher.
Because it said, Concentrate.
CNN: If you stare at your hand for a long time it will look weird
To prove they can focus on two things at once.