
Every keystroke, every click, every hover, every scroll.

project-syndicate.org/commentary/big…
Big data = less talk, more actions
Private data often relies on observing actions rather than survey responses. This is particularly important given research on challenges in conducting surveys today, e.g. mitpressjournals.org/doi/abs/10.116…
giant.gfycat.com/WealthyImagina…

