I haven’t posted in a while and I am due to give my February update.  But while you are waiting for that, here is an amazing analysis of self-data, collected over 20 years, by  Stephen Wolfram, famous mathemetician and designer of Mathematica, and the Wolfram|Alpha ‘knowledge engine’.

Take a look – it’s pretty amazing:   Stephen Wolfram: The Personal Analytics of My Life

Here is a plot of all of his keystrokes, over 100 million of them (!) over 10 years.


Unfortunately, he doesnt talk about how he collected all of this.  Back in 1990 when he started collecting data, computers were very different beasts.  It is amazing that he managed to collect this data over different eras and different technologies.  Awesome.