David T. Lewis uploaded a new version of EToys to project The Inbox:
http://source.squeak.org/inbox/EToys-dtl.281.mcz

==================== Summary ====================

Name: EToys-dtl.281
Author: dtl
Time: 2 March 2017, 9:05:08.262967 pm
UUID: 5441a7e4-f77e-45cb-bb21-a24bc7a2b87b
Ancestors: EToys-ul.280

Capture Bert's explanation of Worldlet in a class comment

=============== Diff against EToys-ul.280 ===============

Item was changed:
  PasteUpMorph subclass: #Worldlet
  	instanceVariableNames: ''
  	classVariableNames: ''
  	poolDictionaries: ''
  	category: 'Etoys-Squeakland-Morphic-Mentoring'!
  
+ !Worldlet commentStamp: 'dtl 3/2/2017 21:02' prior: 0!
+ An area with a private Presenter, viz, for which the scope of its stop-step-go buttons is limited to the area's interior.
+ 
+ A Worldlet serves as a world within a world, which can have its own flaps, but does not have its own worldState. It is used for recording and replaying demos in an EventTheater.!
- !Worldlet commentStamp: 'sw 9/19/2006 14:53' prior: 0!
- An area with a private Presenter, viz, for which the scope of its stop-step-go buttons is limited to the area's interior.!