In a laser you are basically getting photons to behave exactly the same way. Trillions of them. To do that two things are required, keep a bunch of atoms conti

In a laser you are basically getting photons to behave exactly the same way. Trillions of them. To do that two things are required, keep a bunch of atoms continually excited by heat, electricity, whatever. And secondly, an echo chamber (think a tube with mirrors where photons fly back and forth). This sets up chain reactions. Each photon that flies thro an excited atom produces another photon which mysteriously has the exact same speed, color, phase as the original. Then you get a cascade as they bump into other excited atoms. The comment is saying, replace atoms with humans, photons with human action?, social media/news media/russians as source of excitation and amplification and you probably can get a whole bunch of humans in sync. Should point out no one really knew what to do with lasers for a long time after they were discovered.