Matt Parker ("Stand up Maths" channel on YouTube) gave a very informative and entertaining lecture in 2010 titled "Clutching at Random Straws" [0], which, among other things, covered something similar. From the subtitle of the video: "Did aliens help prehistoric Britons find the ancient Woolworths civilisation?" The answer is "no". Given enough data points, you can find all sorts of patterns. 0: https://www.youtube.c…
He gave example from some text taken out of bible with spaces removed. That's lots of letters on one screen, and from those letters he was able find his name, date and topic of the talk, when joining letters at equal distance.
Finding unbelievable patterns is not as amazing as we think.