Hello Nigel – sorry I have been away from the forum discussions for a while. I have a parent who seems to be developing dementia, or something related. I’m happy to know that you already used rain as an analogy; I will view that link soon. As for your prior post, I may re-read it one or two more times after I view your rain analogy. I like learning astronomy and other sciences but sometimes it takes me a little time to fully understand the language specific to each discipline. Likewise, terms specific to the UB (like the differences between the various universe levels (such as local, grand, master, etc) slowed down my learning, until I saw one of your prior videos.
It’s quite late for me now, so goodnight – Michael