So a math professor is going through the proof of a theorem on the blackboard in front of his class. Partway through, a student stops him to ask about the justification for a particular step. The professor furrows his brow, stares at the chalkboard for a moment, then walks briskly from the room. Twenty minutes later he returns, his chalk worn down to a nub, and announces triumphantly, “it’s obvious”.
I know this one as: professor walks into a class, scrawls an equation on the blackboard, and announces “I’m sure you’ll all agree that this is obvious.” Then he stops, stares at it, walks away, comes back 20 minutes later and says “Yes, that’s right, it is obvious.”
Twenty minutes later he returns, his chalk worn down to a nub, and announces triumphantly, “it’s obvious”.
Exactly. I wonder if anyone has a good link to a particularly witty or authoritative expression of this parody. I find it warrants reference rather frequently.
So a math professor is going through the proof of a theorem on the blackboard in front of his class. Partway through, a student stops him to ask about the justification for a particular step. The professor furrows his brow, stares at the chalkboard for a moment, then walks briskly from the room. Twenty minutes later he returns, his chalk worn down to a nub, and announces triumphantly, “it’s obvious”.
I know this one as: professor walks into a class, scrawls an equation on the blackboard, and announces “I’m sure you’ll all agree that this is obvious.” Then he stops, stares at it, walks away, comes back 20 minutes later and says “Yes, that’s right, it is obvious.”
Exactly. I wonder if anyone has a good link to a particularly witty or authoritative expression of this parody. I find it warrants reference rather frequently.
It’s one of the standard famous anecdotes about Norbert Wiener.
(Oddly enough, the reason I know so much about Wiener is because Dan Simmons in Hyperion & Fall of Hyperion based Sad King Billy on him.)