It can be - https://en.wikipedia.org/wiki/Green_flash

That's refraction not scattering though.

The ugreen one is rechargable - https://www.ugreen.com/en-ca/products/ca-45298

I have the ugreen card, and it works fine. https://www.ugreen.com/en-ca/products/ca-45298

Anyone stealing a wallet would immediately look through the contents and discard such card, no?

My need was finding my black wallet in the house when I forget where I put it. My wife has been very happy that she no longer has to field "Hey sweetie, have you seen my wallet?". I walk around asking it to sing to me, and I find it without bother.

As for theft - you might be overthinking it. It's a black piece of plastic that could easily be a door key. Gutter thieves will rifle the wallet and pull out cash, and credit cards, and drop the rest in the trash anyway. Any regular thief knows they don't want to be caught holding someone else's id.

I mean it's there front-and-center and mentioned multiple times in all materials related to airtags. These are not anti-theft, or stalking devices as they alert the thief. They are tracking devices for misplacing items (e.g. a wallet).

I own 8 AirTags, and have them on all my sets of keys and in all my bags. I've managed to avoid loss about 5 times in the 3 years of using them. It also gives me piece of mind when landing on a plane that my luggage is where its meant to be.

If you want to stop your wallet being stolen, I'm afraid your options are very limited.

This matches my testing. Aurora is fast enough that we actual started to contend on the heap locks, and had to tune our batch orders. Too bad network-attached i/o is so slow.

Yeasts and fungi produce durable spores. But most gut bacteria do not form spores. When they dry out, they die.

Planning, good sense, and caution go a long way to compensate for physical impairment. Weed is different from booze in that booze increases risk taking, which makes driving such a danger. But that doesn’t mean weed doesn’t impair in some material way compared to baseline.

Your average driver on alcohol: goes 100 miles per hour into a tree

Your average driver on weed: drives 5 miles per hour to the taco bell drive thru

Betteridge’s law wins again. The answer is obviously “no”.

Apple does not dispute they locked this man’s entire digital life without recourse because he suffered a fraud, and he only recovered because famous people intervened. You’d be insane to risk that.

Both NY and SF were regional hubs before cars disfigured them. No commercial vehicle is going to be discouraged by a $10 dollar charge, and trade is so much easier when the roads aren't clogged by single people demanding 1000 sq-ft of ground space to move around.

Because success would encourage it in other cities facing terrible traffic.

People say they hate socialism, but drivers love car-socialism.

There are financial incentives to find/make organ donors.