Future Predicting Neurons

In Nature:  Future predicting neurons. An odd idea, but poses an interesting thought.  If we could tap the output of such a neuron, is it the prediction of what we would do under particular conditions?   Is this akin to the fabled buy switch?    Better than a questionnaire?    But as we often find, the brain is never quite that simple.  What is the link between the operation of neurons and a human decision?   Somewhat too like the discovery of empathetic neurons, around which many stories were spun, but nothing practical I have seen as yet ...