Google’s Sidewalk Labs Plans to Package and Sell Location Data on Millions of Cellphones January 28, 2019 https://theintercept.com/2019/01/28/google-alphabet-sidewalk-labs-replica-cellphone-data/
Well, this program in particular doesn't seem that problematic. As long as the data is averaged out enough. What is freaky is the existence of so much location data to be "de-identified". At the risk of being boring, it's the panopticon. You never know who's watching. Santa knows if you've been bad
Sidewalk Labs' controversial data collection project is now a company Alphabet’s Replica maps the movement of pedestrians for city planners September 12, 2019 https://www.engadget.com/2019/09/12/sidewalk-labs-replica-series-a-funding/