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Hi Coin,
The most interesting thing I see in Lee's paper is how he obtains the action for gravity and gauge fields from an initially E8 invariant action. This addresses a dissatisfaction with the "by hand" symmetry breaking in my paper.
1.They're separate. Having the fermions described by non-local links is an interesting and rather speculative idea.
2.Since the full details of this idea aren't worked out, it's hard to say.
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