>>5533892 pb

The first thing I thought when I looked at "The Wall" was, "Wouldn't that be an elegant place to hide an ELF antenna?"

https://en.wikipedia.org/wiki/Extremely_low_frequencyLF

The attenuation of ELF waves is so low that they can travel completely around the Earth several times before decaying to negligible amplitude, and thus waves radiated from a source in opposite directions circumnavigating the Earth on a great circle path interfere with each other.[20] At certain frequencies these oppositely directed waves are in phase and add (reinforce), causing standing waves. In other words, the closed spherical Earth-ionosphere cavity acts as a huge cavity resonator, enhancing ELF radiation at its resonant frequencies. These are called Schumann resonances after German physicist Winfried Otto Schumann who predicted them in 1952,[21][22][23][24] and were detected in the 1950s.

But I don't see how that connects to "CLAMP," except that a dig on

CLAMP implies that they mean "to reduce unwanted resonance."

Mayotte 17 related?

https://bigthink.com/surprising-science/mystery-seismic-wave?rebelltitem=1#rebelltitem1