when pb is thinking, what is the diff between..

[dorqiekat]

When my pb is thinking, I see the beach ball and the watch. What's the difference between the two? Do they both mean the same thing? Are there times when just the watch is used, and when the beach ball is used? It's weird..

 

[Makosuke]

This question was answered in great depth not one week ago in this very forum:

https://forums.macrumors.com/threads/145264/