Why I Love Reading the Sunday Paper

[popeyespappy]

There’s one thing I never understood about this theory. If the Earth was formed from the same disk of materials as the meteorites, why was it necessary for the early Earth to be seeded? The same materials should already have been here.

But the earth got much hotter than the asteroids because of its size making for a sterile dry place it stayed hotter longer too. Hence the need for outside organic material.

I hear what you're saying but.... If heat was a big problem for the proteins in question, most of the ones that came to Earth as part of an asteroid or comet probably would have been destroyed during the impact. Most of the new material would have been brought to Earth during the heavy bombardment period anyway. As such it would have been subjected to the same kind of stresses that the material that was originally part of Earth.

On one of the Through The Wormhole episodes some NASA scientist was doing some impact simulations using a hyper velocity gun. Basically the result of experiment was heat plus pressure turns simple proteins into complex proteins.