Comment by elktea

I enjoy reading far out theories like these. I recently[1] saw one that claimed all the weird tunnels that terminate just short of the outside resemble wave guides, the big tunnel with the grooves was a low pass filter and the whole structure was basically a giant antenna

Any electrical engineers around feel like modelling it seeing how true it is?

[1] https://www.youtube.com/watch?v=Yb0zGX2gJIY