Thats logical Captain ...
Actually I will watch the video later, I updated my drivers and lost my sound, but have been so busy I havn't had chance to sort it out yet.
I am half deaf and can lip read pretty good, but it doesn't help much with a video commentary 
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I agree with you Rob about logic, I spent decades with CMOS logic, but there's only so much De Morgan type stuff you can do, so that is why Arduino was a breath of fresh air to me.
I struggle and make stupid mistakes, but the sense of reward when I logically find my error, is so rewarding. and if I can't I can always " phone a friend " as my wife calls it when a I post a problem on this forum.
( I actually had a post ready to send today, about a problem I had , but while thinking about what you guys would say, and indenting it nice and pretty , etc. I spotted my brain fart and sorted it out.)