FWIW, I'll come to Irouléguy's defence here: (i) I think the categorization of the GC as mineral is entirely reasonable, since the flora and fauna are not an essential part of the Canyon; (ii) I think the positive response to the earth's crust was also reasonable (although I agree that the audience went a bit over the top), since a "no" would have been a more misleading answer; (iii) "self-indulgent" is an unfairly harsh term, given that he was just injecting some humor.

(CdM) Agree on (i), not on (ii); (iii) is more a matter of taste. BTW a meteor the size of an elephant would fall to earth and cause a lot of damage and would then be classed as a meteorite. Can't be that, but we'll see.

[Rosie] Not an asteroid or meteorite [CdM] Not a meteor, Perseid or otherwise. (However, the audience sits up in rapt attention, biting its nails in great anticipation of the next guess. Not quite cigar yet, but close).

[Rosie] You are absolutely right about the elephant, of course.

[CdM} A Comet ? YES!!! Congratulations! How spatial! What a brilliant win! The tail end of this guessing game was great! Here's to many more, the sky is the limit! The baton is passed, so take it away...