Ontology of Causal Dynamical Triangulation

TheHeraclitus · Sep 13, 2021

Also, what does Sabine mean in this video by the sentence: (5:51 in the video)

It treats space and time differently which Einstein thought us not to do.

Thank you!

Demystifier · Sep 14, 2021

TheHeraclitus said:

Also, what does Sabine mean in this video by the sentence:

It means that space and time are not treated on an equal footing. In other words, it's not manifestly relativistic covariant.

TheHeraclitus · Sep 14, 2021

Demystifier said:

It means that space and time are not treated on an equal footing. In other words, it's not manifestly relativistic covariant.

So it denies the reality of Spacetime?

Demystifier · Sep 15, 2021

TheHeraclitus said:

So it denies the reality of Spacetime?

According to Sabine, yes.

TheHeraclitus · Sep 15, 2021

Demystifier said:

According to Sabine, yes.

Interesting, that would make sense since Wikipedia says CDT is related to Hořava gravity where space and time are treated differently too.
I am also a bit confused about the nature of space in CDT. Sabine says finite size of the triangles is only a mathematical aid.
Does this mean space is continuous or discrete in CDT?

Ontology of Causal Dynamical Triangulation

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Ontology of Causal Dynamical Triangulation

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