Extreme QRP?

In my emails today was the Elecraft Newsletter. 

One of the articles was about "extreme QRP". This looks interesting I thought, only find out it was about 1W. To my mind extreme QRP is microwatts, not watts. I would have been more impressed if this person had got spots with 100uW rather than 1W!!

From my own tests years ago, well below 1W can get spots.

I know of at least one person who has been spotted across the planet with 20mW on 30m.