There was report that the CIA used a new tool called Ghost Murmur to detect the electromagnetic signals of a human heart from (40?) miles away, using long-range quantum magnetometry.
My first guess (and still a hypothesis) is that this is deliberate disinformation by the US, but i do not have the expertise required to judge the plausibility.
In any case, it could have been an interesting question on the “Could a superintelligence do that?” quiz show.
There was report that the CIA used a new tool called Ghost Murmur to detect the electromagnetic signals of a human heart from (40?) miles away, using long-range quantum magnetometry.
See also Wikipedia.
My first guess (and still a hypothesis) is that this is deliberate disinformation by the US, but i do not have the expertise required to judge the plausibility. In any case, it could have been an interesting question on the “Could a superintelligence do that?” quiz show.
Probably depends on the terrain. Detect someone in an empty desert? In a city? In a forest where animals live?