Weird and wonderful: the "Webdriver Torso" mystery videos explained - and remystified!

An esoteric mystery has taken the internet by storm!
If you're not up to speed with the latest in conspiracy theory, you need to know about the eerie YouTube sensation known as Webdriver Torso.
It's a YouTube channel with nearly 80,000 videos, pumped out in batches.
Each one consists of ten peculiar frames, each with two randomly sized and placed rectangles, one blue and one red.
 
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For anyone who used to listen to the Numbers Stations this is interesting.