[muawiyah]

If you simply leave out the RNA step and place water under the sort of pressure you might have at the core of a planet, you get double-helix water molecules (technically an ice) remarkably similar to DNA. (SEE: http://www.geotimes.org/apr07/article.html?id=nn_ice.html )

There's no reason life has to jump through the DNA hoops and learn how to behave like a trained puppy when it's possible that it's just something that takes advantage of water.

[TigersEye]

There's no reason life has to jump through the DNA hoops and learn how to behave like a trained puppy when it's possible that it's just something that takes advantage of water.

Consciousness?

[Buggman]

That kind of pressure and heat would destroy the necessary chemical bonds for all of the other things that go into a living cell.