I saw a reddit post about a guy with his motorcycle and backpack and Googled about the backpack brand to see if they still sold that model. After a few minutes, I figured they didn't and left it at that. A few hours later I go on Instagram and one of the first ads I see is about the brand I just looked up. I had never heard or googled about this brand before today and now Instagram is showing me ads for it. How was Instagram able to find out I looked this brand up? Is there any way to prevent this or are we doomed to just be harvested for data?