Three paths for technology to take as it seeks to obtain information about us

As I've thought about the possible uses of cell phones and similar technology to affect us and our children for good or ill, I've looked into different ways that the programs they run can become aware of what interests us and how we think or feel about something specific. There are at least three avenues that I can see:

• Speech recognition of what we say aloud--this can occur via 
• built-in microphones (obviously microphones are standard on cellphones so that we can use them as telephones),
• accelerometer-sensed vibration analysis (see how in this article: https://csl.illinois.edu/news-and-media/42303), and
• optical sensor-captured air vibration analysis (here's one way: https://www.semanticscholar.org/paper/Guided-spatio-temporal-Filtering-for-Extracting-Tanigawa-Yatabe/dffdd0a4103ccba483aa8fa6a830d250dbad50be).

• Brain electromagnetic wave pattern recognition--our neural network extends from our brain throughout our body and into the skin, and our neurons send signals to each other using a combination of chemistry and electromagnetism. The anomalous Nernst effect, which involves using magnetism and heat to generate an electrical current, points to an ability to have tech device interaction with our neurons due to the magnetic fields in and around human beings (The article at https://www.nature.com/articles/s41427-019-0116-z discusses how to induce a larger voltage than was previously thought possible for a given magnetization). Such currents could be used to sense and possibly interact with our neural network signals.

• Long-distance brain electromagnetic wave pattern recognition using quantum particles--the weak force appears to serve as a bridge between "quantum entanglement" (the so-called "spooky action at a distance" that has been experimentally proven to happen: https://scitechdaily.com/first-experimental-proof-that-quantum-entanglement-is-real/, https://www.newscientist.com/article/mg26234921-800-how-quantum-entanglement-really-works-and-why-we-accept-its-weirdness, and https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.076016) and the electromagnetic activity in our brains (see this summary of the electroweak interaction: https://en.wikipedia.org/wiki/Electroweak_interaction). While I don't know how one would actually establish the requisite quantum entanglement between our neurons and a sensor located in a distant location, once it is in place, the entanglement should enable what we consider "mind reading."