It is. One of the first magnetocardiographs was of my heart, because I happened to be in the basement when my fellow graduate students were looking for a subject (I’m a theorist and wouldn’t be allowed to actually touch anything). They used a SQUID that cancelled out the Earth’s field and its gradient; the sensor was close to my skin but not touching it.
There is a critical difference with audiophiles: they suffer from a superstitious belief that their expensive cables and so forth actually make their systems sound better.
If you’d like to improve the clarity and beauty of your writing, attend to this criticism. It may be harsh and painful to take to heart, but it’s valid.
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