And we do that like this: you press his nose and that activates the voice card.

But how do you effectively reach these people and activate them?

The system then activates the component for you.

What it does mean is that, for whatever reason, this particular neuron was activated by this particular scene, almost certainly with a network of other neurons across the brain.

In fact the perfect phone might be one that is 100% screen, though that would make it hard to hold without activating the touch screen.