Sure, if you psychologically can't stomach the idea that the nature of some things might ultimately not be amenable to empirical methods. The only problem is you might be like the drunk looking for his keys under the street lamp.

If a hypothesis is untestable by definition, then it's irrelevant. It doesn't matter if it's true or not because there's no way to distinguish any effect.

So sure, maybe our infinite soul communicates with our body from the future. But until you can show that that makes any sort of noticeable difference in reality, it's magical nonsense.

Just because something is untestable by humans doesn't mean it's untestable by definition.