I think the celestial teapot is more famous.,(reply>)," <a href=""https://xkcd.com/1866/"">https://xkcd.com/1866/</a>",(reply>), geryon You're right, it isn't a proof that it doesn't exist. However, it can be used as an indication that it probably doesn't, so I should amend my original comment to "the one that probably doesn't exist". <br><br>On the other hand, I feel pretty confident that you can't prove that it does exist.,(reply>), @Donach mc kenna His razor isn't really a proof.,(reply>), geryon William of Ockham might have something to say about that,(reply>), You can't prove it doesn't exist.