One of my ideas was the Open Sensor Array.

It is to be an Arduino-based opt-in sensor system, sensing RF, WiFi, light, dust, possibly all weather, noise, etc... and putting those results against health authorities results for depression, road rage, murder, suicide... to try and see if there is any correlation between the waves and particles flying through our bodies, and our moods.

It sounds a bit like hippie science, I know, but I feel at this point it's barely even being looked into.

The reason I haven't started this project yet was due to sensor-spoofing concerns. I have been doing some reading regarding this, and am open to any suggestions as to how to verify open-source results from across the planet.

Interesting reading on the matter: https://www.usenix.org/conference/woot16/workshop-program/presentation/park

Also a concern, is the whole Big Brother scenario. This sensor system will be admittedly invasive.