It's crazy how vast and powerful databases of even the most simple things turn out to be. You just store characters and context information when someone types them, and this is the result.

Using this data alongside ML, you could do things such as:

- Identify people based upon their typing style easily, given so much data about them

- Find a lot of secrets that were accidentally pasted into document including passwords, keys, etc

- Try to model the emotions people were feeling as they typed things

- Much, much more, given some data and time