So let's get on with this post.
We have now expanded our Ben example to have a secondary event for one of the primary event's outcomes. Let's expand out field of interest a bit.
So here you can see we've made a simple change to the diagram in the last post; we've extended the 'Coke' outcome of the primary event. The new outcomes are quite easy to see, as they're exactly the same as the ones for the 'Beer' outcome, only applied to Coke. Once again, the scale is changed to compensate for more stuff.
Also note that the 'Water' outcome to the primary event has been moved to the side, because it can't overlap with the third outcome of the secondary event of 'Coke'. Remember, probability is cumulative, and it's almost as if we're expanding the 'Coke' line, as if in an interactive computer program, or some such thing.
I had another diagram, but I've just realised it's wrong. I think we'll have to leave it here today, folks. I'm also quite pissed off at the moment, so I wasn't really in the mood.