On Fri, 9 Sep 2022, Rob Pike wrote:

> There was a delightful conference in Copenhagen celebrating that event, 
> and I was lucky enough to attend. The slides of my talk live 
> here: http://herpolhode.com/rob/ugly.pdf
> 
> I flew back the next day, September 10, 2011, and it was a beautiful 
> clear night with a stunning view of the city. We sat in the last row of 
> the plane, and had an unobstructed view of the trade towers as we landed 
> near midnight. We went home, fell asleep, and were woken by a phone call 
> about 9am.
 
Cripes...  I remember it well.

-- Dave