I read about that Target thing as well. I seem to remember someone who worked for them stated that their shopper data analysis algorithm was so accurate, it was able to predict a pregnancy's due date within about a five to seven days margin of error. I'm in the US, with conservative states passing all these draconian anti-abortion laws, I saw a ton of women searching for "period tracking" apps that didn't share data for fear of being tracked by the government. Someone should be able to use technology to track and maintain their own health without fear of big brother snooping around.

It's wild how much data is collected and what companies and governments can do with it.