The sistrums are tinkling - is this how Venus' greenhouse effect arose?

Take a look at http://vettriana75.multiply.com/journal/item/4 - just one
example of many places on the web where this text can be found.

Bizarre as it may seem, this synopsis of Bizet's opera "Carmen" in
hopelessly broken English has inspired the following hypothesis for how
Venus came to be the way it is.

Picture Venus and Earth as they might have looked shortly (on a cosmological
scale) after being formed, starting to cool and developing a solid crust
over a still-molten mantle. At this critical stage, Earth was hit by
something big (the moon?) which caused the nascent crust to crack like an
eggshell. Venus was spared this indignity, the crust remaining in one
piece.

As the gigayears pass, the cracks in Earth's crust never really heal,
because volatile substances outgassing from the interior, can blow off
through the holes which are constantly appearing in the cracks. We call
them volcanoes of course. The point is that this outgassing happens
continuously at a rate which the natural environment can cope with, so the
emerging CO2 and SO2 can be absorbed by the oceans to form carbonate and
sulphate minerals, or lost into the solar wind. However majestic and
frightening (and dangerous) volcanoes are, "I do not threaten, I besooch
you" - they are performing a useful service.

What's happening on Venus meanwhile? No cracks in the crust, so no
opportunity for continuous volcanism. The volatiles are trapped beneath a
solid crust with no way of escape. There may be oceans, but insufficient
carbon around to form a viable biomass because it's all below the crust.
But there would come a point where the crust cannot contain the pressure
any more. "Oh rupture, rupture." A continent-size supervolcano goes off and
releases three gigayears' worth of outgassing into the atmosphere all at
once. Venus' ecosystem cannot cope and the greenhouse effect takes off
irreversibly, the oceans boil away and the surface temperature settles in
the 400°C region.

This hypothesis agrees with the apparent absence of volcanoes or tectonic
activity on Venus. It does predict that the remnants of at least one
supervolcano would be found, much larger than anything on Earth. Perhaps
its sheer size has caused us to overlook it - imagine a caldera the size of
Australia!

So perhaps the original collision between Earth and some planetary intruder
was all for the best, setting in motion the plate tectonics which has
allowed Earth to remain habitable. "Oh my beautiful Earth, my subductive
Earth!"

Comments anybody?
--
Pelagiarism: passing off somebody else's heresy as your own

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