Is There a Dag Universe of Causality?

Nero scientists have created tools and techniques for doing exactly that. We can stimulate with light a particular type of neuron in a particular part of the brain, and we can see how that perturbation affects behavior. That gives us, that takes us to the next level, because now we can at least feel we're in the dag universe of causality. But i don't think that that's going to be the whole story.