A little while ago, I came across that Google, for the purposes of being kosher with the GDPR laws, you can actually download great big lumps of data for some/all of the duration of you consumed Google's services. On this site, you can see all the places Google has sensed you have been with a smart phone. https://www.google.com/maps/timeline?pb - go and try it!! So we can also download a big dataset which Google has to legally let us download. https://takeout.google.com/ Ok, so I wanted to download all my mapping history. I got this as one big fat JSON file. How big is this? So I opened this in a freeware text file editor, 480 Megabytes, all the places I've been since 2013 (I got a smartphone relatively late in life, I know) Yes, this has over 20 million lines of code. Now can I exploit the methods of how the big tech companies are exploiting us. he he.