Re: This Week's Finds in Mathematical Physics (Week 222)

Ralph Hartley wrote:
> John Baez wrote:
...
>> My main worry about their work is that it uses a fixed slicing of
>> spactime by timelike slices. So, there's a danger that their
>> procedure breaks Lorentz-invariance, even in the continuum limit
>> which they are attempting to compute. I would like to find a way
>> around this problem!
>
> This is only a problem if the slices have any physical effects,
> hopefully they don't.

Am I hearing resonances here of "piecewise integrability"? Is there
something physically magical about the boundaries?

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