There are all kinds of detailed facts to extract: like that the average fraction of keys I type that are backspaces has consistently been about 7% (I had no idea it was so high!).
That is from Stephan Wolfram, and it is only the beginning. Here is his on-phone probability:
The entire post is interesting. There are these words too:
And as I think about it all, I suppose my greatest regret is that I did not start collecting more data earlier.
For the pointer I thank Brandon Robison.