Thank you so much, Carla, that's very thoughtful and considerate of you. I really appreciate it!
Re your links: Catherine makes a lot of good points. And I definitely need some pointers for taking selfies;-)
LOL kkards - It's not new, but it seems a lot of outlets have been writing about it lately.
suntiger - That is so fascinating, WOW! Imagine being able to see so much more colour nuances.
Suz - I've hit my monthly article limit again on The NYT, but that's OK:-)
Thank you everyone for these fantastic links!