Does anyone know...

[Bob Schroeck]

...if some enterprising fan has already run the numbers of the physics of the Second Impact cover story?  As in, "X amount of energy is needed to melt all the ice in Antarctica; delivering that energy requires a meteor of mass Y and velocity Z", with an extrapolation of real-world physical effects beyond icecap vaporization?  It occurs to me that Doug, on hearing the meteor story, might just work up his own calculations on how likely the story is, and I'd like to save myself the effort if someone else has already done it.

Thanks.
-- Bob
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Then the horns kicked in...
...and my shoes began to squeak.