A man in a plaid shirt with a laptop in his lap is sitting next to a table with a microscope and a circuit board on it .
It is impossible that a man with a laptop and a microscope is studying a disease .
It is impossible that a man with a laptop and a microscope is studying a disease .
Chances are about even that a man with a laptop and a microscope is studying a disease .
A man with a laptop and a microscope is studying a disease .