Possibly the RF interfacing nano structures being grown in the brains of the vaccinated by the genetic programming are finally being fired up. They may be tuning the population of large cities for future mass direct brain engineering.
One could test this by waiting for the hum to start back up then stepping inside a faraday cage or bag. If the hum stops then we're getting somewhere. Either way, I would get out of any city this is happening in while you still can.
Possibly the RF interfacing nano structures being grown in the brains of the vaccinated by the genetic programming are finally being fired up. They may be tuning the population of large cities for future mass direct brain engineering.
One could test this by waiting for the hum to start back up then stepping inside a faraday cage or bag. If the hum stops then we're getting somewhere. Either way, I would get out of any city this is happening in while you still can.