[IIAOPSW]

Really really want to clarify I was in no way implying a psychiatric issue. Just that anything which turns up the sensitivity of our perception also turns up our false positive rate. Everyone experiences false positives sometimes: occasional, temporary, erroneous perceptions. Its only psychiatric when the signal to noise ratio is too low to correct.

Very interested in the ultra low frequency bit. Any estimate at how many hertz it was? Somewhere under 20 hz it has to stop being sound and start being a consciously perceptible "puff of air".