I’ve got photos in Flickr dating from 1999 onwards. Ten thousand or so of them, and a couple of the early ones are now corrupted.
But they are my “other backup” for Google photos so I don’t mind too much. I also have a USB Blu-ray drive at home that I use to periodically burn M-Discs that I hand out to a few relatives.
That’s about as good as I can conveniently do for backup, and it’s probably better than the single-point-of-failure box of negatives that my parents have in their cupboard.
Because they have to compete with 50k lux outside and then scale to 600 lux indoors, then down to just to a few lux in a darkened room.
Perhaps the brightness slider needs to be more logarithmic so you can slide from 0.001 percent to 100 percent more easily.