Proliferation of sensors on wearables and hand-held devices

I apologize if this sounds conspiracy-fueled or anything. I recently retired from a multi-decade career in data science (once it was a thing) and software development, and have had a lot of time on my hands.

I have a smart watch that is capable of recording continuously my heart rate, possibly other biometrics that may change due in response to emotions. This watch also communicates with my hand-held device as part of a shared service ecosystem. From this hand-held device …

career data data science development devices heart lot privacy proliferation rate recording science sensors smart software software development watch wearables