I would comment only about the wireless charging case: In medicine there is a wireless device to treat an aggressive form of brain cancer: TTFields. It is appro

I would comment only about the wireless charging case: In medicine there is a wireless device to treat an aggressive form of brain cancer: TTFields. It is approved by the FDA [0] It works by disrupting microtubules in the cell, a kind of micro-skeleton that gives its shape to the cell. The TTFields electrical fields have a low frequency, very similar to the Qi wireless charging standard. [0] https://www.accessdata.fda.gov/cdrh_docs/pdf10/p100034a.pdf https://www.accessdata.fda.gov/cdrh_docs/pdf10/p100034a.pdf