It is absolutely bonkers to think about using UV to disinfect human skin, let alone the inside of the human body.
Any UV radiation strong enough to destroy the cells of bacteria is strong enough to destroy human cells. We know that UV-radiaton that's not strong enough to kill bacteria is already harmful to human skin (we call the phenomenon sunburn).
> UV-C has demonstrated the ability to effectively and safely inactivate the SARS-CoV-2 virus up to 99.9%
> There are four methods to disinfect the air with UVGI technologies: 1) ..., 2) irradiating the full room, whole-room far UV-C when rooms are occupied 3) ...
Truly, the lack of critical thinking in the left meme reposters was the main cause of dems losing the last election. You guys are pretty successful in demonstrating that.
Your source talks about the disinfection of air, contains no references to disinfection of skin, and only mentions skin three times, twice to specifically warn against skin damage from UVC exposure, and once to clairify which types of UV light penetrate the skin.
Why carrying it is practical? What is it used for?
The only time I need my ID is during elections, but I can also show the one I have in our government produced app.
Older people in Poland do carry those, mostly out of some kind of habit and some kind of fear that police might need it. I can drive a car and get a speeding ticket, and all I need police to know is my ID number (it is not the identifier of my identity card), which I know by hard, it consists of my birth date plus 5 semi-random numbers). I don't need my ID, my driving license nor my insurance data - everything is located in police database based on my ID number (or my license plate).
Bad sides of carrying it is that you might loose it, and that is a PITA, because you need to block it right away (someone might take a loan with it, happens I kid you not) by calling your bank or similar service.
So I take it out from my wallet (which I don't carry also) only when I go to the airport.
Is that actually true in the real world? Or is that some comp sci algorithm dream? I suspect it might be an engineers fallacy where the romantic desire to reduce everything to an algorithm or scalar value that can then be maximized or minimized blinds the engineer to the reality of the situation - the businesses doing route planning already have something thats close enough to optimal so that if the travelling salesman problem was solved, it wouldn't make a material difference to the business.
The algorithm engineer is so in love with the idea that an algorithm is the solution to everyone's problem (its a natural human bias to think the world desires what we have) that they way overweigh the importance of route planning improvements which are incremental or worse - would be thrown away because the practicalities of implementation doesn't warrant the marginal improvements.
Absolutely true in the real world; I was part of a real team that explored quantum optimization algorithms as part of a strategic initiative (my day job is algorithmic optimization on classical computers).
Our problem is similar (but not identical) to the traveling salesman problem. We run on a tight time constraint (measured in days for the complex type and measured in minutes for the simple type).
We're running approximations on classic computers but estimate that we'd save billions if we could reach optimum.
It seems baked into the concept of "reselling can't be done at a higher value" that transfers would have to be limited to a platform where that sort of thing is prevented. For example, if the reselling market is just "add your ticket to the pool for people to buy, and if someone does, they get the ticket and you get the money", there's no way for the sellers to contact the buyers, so I'm not sure how you'd envision an out-of-band payment occurring.
It's in all kinds of medicine. People take some pills and then add a cough syrup, not noticing that the syrup also contains it as an active ingredient.
Stealing is one possible problem (transactions out of country are really hard to claw back), but the major fear is probably stability. You won't like the consequences if a significant percentage of your countries banks are down for a few days...
If you don't like it, you are not a true believer in a free market. There's a reason social democrat countries heavily subsidize culture.
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