I Alexander Vilenkin and energy of a closed universe

[Question69]

If you can convince all the people who have written papers claiming that pseudotensors, or at least some of them, do have physical meaning, sure. As I noted before, two of the people you would need to convince are Vilenkin and Guth.

I am not sure why so many people think there is anything wrong with energy not being conserved, it wouldn't be magic how it isn't.Does Inflation theory require the usage of pseudotensors to work or something of the sort?

 

[PeterDonis]

Does Inflation theory require the usage of pseudotensors to work

To my knowledge, no, the model can be formulated entirely in terms of tensors and pseudotensors are not necessary. From what I have read in the literature, the emphasis by some physicists on pseudotensors is more a matter of their beliefs or opinions about physical interpretation than about actually making predictions from the model.

 

[Question69]

To my knowledge, no, the model can be formulated entirely in terms of tensors and pseudotensors are not necessary. From what I have read in the literature, the emphasis by some physicists on pseudotensors is more a matter of their beliefs or opinions about physical interpretation than about actually making predictions from the model.

I am not really against these sorts of things physicists do, I think the philosophy of physics is a really interesting field of study.