My background is physics is meager. My university training is in business and computing. My hobbies are in music. However, in recent years I find myself becoming fascinated by many scientific subjects that a better understanding of physics would be helpful for. I find it helpful to read point-counterpoint discussions by knowledgeable persons, especially when I can glean links to sources for information. I will probably be in lurking mode most of the time, except when I might poke out my nose to ask a question. I look forward to learning from you all.