Ya that's the massive weakness of these studies. They always read more into their data than what's actually there. You're basically taking a snapshot of lights

Ya that's the massive weakness of these studies. They always read more into their data than what's actually there. You're basically taking a snapshot of lights in a city at night. You can't see any of the people or what they're doing, but you see a lot of lights along the waterfront. You know a shipment of freight just came in, so you make the reasonable assumption they're unloading the freighter. But they could just as easily be dumping the tea in the harbor. There's no mechanical description of what is happening, just the observation that something appears to be happening.