While reliable data are scant, of the estimated 225, 000 reports each year of people collapsing of sudden cardiac arrest, some experts estimate AEDs are generally used to help fewer than 5% of victims.

WSJ: This Device Saves Lives, But Can Be Hard to Find

Some experts estimate that there are four billion devices connected to the internet but, according to researchers at the Stanford School of Medicine, a typical healthy human brain contains about 200 billion nerve cells, or neurons, linked to one another via hundreds of trillions of tiny contacts called synapses, that function like microprocessors.

FORBES: Information Overload and the Power of the Human Brain