"except that someday those satellites are gonna fall outta the sky" ... "I don't use electronics for nav in the car"

Really? My grandkids were pretty impressed on our last BVI trip in June 2017 when I could show them how the chartplotter and paper charts showed the same things, but explained that the chartplotter was better because the software is updated more frequently and you can get the realtime information you need faster and thus get your head up and looking forward sooner. Nevertheless, they still think that their 70 year old grandpa is not too techie because I don't use Instagram or Twitter. I am going to show them this thread. I think I just moved up a notch or two. Thanks!