[temp438]

> So how can you possibly talk about what caused you to measure a particular direction when apparently it was magically due to this thing that has no visible connection to it?

You mean a connection we can measure.

as i understand, our measurements rely on what we know and what we know relies on previous events. Its like what and how we measure something is simultaneosly determined by that something. We can't measure the size of a cat's soul because we don't have instruments for it but if we invent the instruments there will be no other choice than measuring them in a particular way the soul allows us to measure it.

Don't know if it make sense at all, but i tried to make sense of it.

[lmm]

Not necessarily that we can measure, but that we can reason about. We can't directly measure energy for example, but we know/assume that it obeys certain laws regarding conservation and locality.

If the cat's soul changed the usual laws of physics around the cat, it would destroy our ability to do physics when cats were nearby. It's not about whether we can measure it but about whether we can isolate its effects. If you can't do an experiment that doesn't depend on the state of the entire universe, you can't do an experiment.