[snip]
> 
> so, the next questions are:
> 
> - What does the morphic world contain, and
> - Where was the mouse, relative to the stuff in the world, 
> while the MessageTally was running?

For that tally, the world contained a browser and a workspace.
The mouse was clear of both.

I just ran it again with a completely empty world and the
results are similar.  BTW - if I collapse Squeak completely,
the Windows CPU monitor still indicates the same 30+% activity.

-david