In The Hitchiker’s Guide to the Galaxy book series Marvin the robot in the course of his incessant and hilarious complaining occasionally mentions he has “a brain the size of a planet” and is still forced to do menial tasks.
I’ve always assumed he was speaking figuratively…after all he is a roughly human sized robot, so his brain couldn’t literally be the size of a planet…he just meant it to mean he was very smart compared to the people around him.
I know though that there are other versions of Hitchiker out there than the books…the radio play especially apparently had a lot of stuff that didn’t make it into the books. So is this remark by Marvin ever explained anywhere? For example, did his brain exist somewhere in hyperspace and literally WAS the size of a planet? Or was it explained somewhere in the books and I missed it?