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## Main Question or Discussion Point

In this new paper today http://arxiv.org/abs/1105.4184, is it considered whether quantum gravity actually has fermionic fields rather than just bosonic fields:

Abstract

It is generally assumed that the gravitational ﬁeld is bosonic. Here we show

that a simple propagating torsional theory can give rise to localized geometric

structures that can consistently be quantized as fermions under exchange. To

demonstrate this, we show that the model can be formally mapped onto the

Skyrme model of baryons, and we use well-known results from Skyrme theory.

This begs the question: Is geometry bosonic or fermionic (or both)?

So what do you think? Does this change our view on quantum gravity radically?

Abstract

It is generally assumed that the gravitational ﬁeld is bosonic. Here we show

that a simple propagating torsional theory can give rise to localized geometric

structures that can consistently be quantized as fermions under exchange. To

demonstrate this, we show that the model can be formally mapped onto the

Skyrme model of baryons, and we use well-known results from Skyrme theory.

This begs the question: Is geometry bosonic or fermionic (or both)?

So what do you think? Does this change our view on quantum gravity radically?