Hi David,

I think that any object is able to send #perform: based on some (other
object's) state. From time to time, this is a convenient pattern. For
example, take the Tool Builder resp. Pluggable Widgets approach. Many
callbacks are stored in instances of Pluggable*Morph.

If we want to expand senders search to the object level, we should respect
all kinds of objects. A blacklist to rule out some false-positives, but no
whitelist. 82ms is fast enough for invoking the senders search. Like
"thorough senders", this should become a preference because we would need to
spawn 2 windows in that case: one senders browser and one object explorer.

Best,
Marcel



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