I struggle with the telepathy argument. I think it's just a placeholder explanation for something a little less sci-fi. Such as scent, body language or just dum

I struggle with the telepathy argument. I think it's just a placeholder explanation for something a little less sci-fi. Such as scent, body language or just dumb coincidence. However I do like the "Falling Skies" (a Sci-Fi drama starring Noah Wyle) explanation for telepathy; which was communication over the electromagnetic spectrum in a frequency that humans wouldn't normally detect (long waves IIRC)