Smolin has presented a testable theory which(adsbygoogle = window.adsbygoogle || []).push({});

offers a possible explanation for some parameters in the Standard Model

and in Cosmology.

In his recent paper he presents a handful of empirical tests which

could shoot down the theory---that is, the theory is falsifiable: it

makes predictions which can be tested with available tools and which

if found not to be the case would invalidate the theory.

The theory is fairly complicated and depends, among other things, on the idea that our universe is the result of a black hole bounce.

According to Loop Quantum Gravity and allied approaches (Smolin cites personal communication from Martin Bojowald, but there is also the recent paper of Modesto) when the classical model black hole is quantized the singularity disappears and spacetime extends, forming another universe inaccessible to us from which we can receive no news. In a certain sense the new spacetime ballooning out from the BH "bounce" or quantum ex-singularity is actually in the future from the standpoint of everything in our spacetime (until and if the hole evaporates, upon which causal relation ceases totally).

If universes are typically created from a black hole bounce, then certain postdictions can be made about the parameters of the Standard Model as well as some observational predictions. The reasoning is rigorous but subtle---best to read Smolin's latest article "Scientific Alternatives to the Anthropic Principle":

See in particular pages 30-31 "Successes of the theory"

also section 6.2 answering previous criticisms

also 6.3 "Why a single heavy pulsar would refute the theory"

and 6.4 "How observations of the CMB could refute the theory."

and 6.5 "How early star formation could refute the theory."

Some sources:

"The fate of black hole singularities and the parameters of the standard models of particle physics and cosmology"

Smolin

http://arxiv.org/gr-qc/9404011 [Broken]

"Disappearance of the Black Hole Singularity in Quantum Gravity"

Modesto

http://arxiv.org/gr-qc/0407097 [Broken]

"Scientific Alternatives to the Anthropic Principle"

Smolin

http://arxiv.org/hep-th/0407213 [Broken]

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