An alternative to multifocals is glasses with one lens for near and the other for far or to use a contact lens in only one eye in addition to your normal glasses. This also obviously comes with downsides that take some getting used to but some people prefer it.
Yes, It's something you'd only want to do in particular situations where you know you'd otherwise keep swapping between two pairs of glasses annoyingly often.
There is potential danger with a lens that can suddenly change to a second prescription. For example: imagine you're driving and your whole field of vision suddenly starts flickering in and out of focus. That would be incredibly distracting and pretty dangerous. Even if they just started focusing on 1 foot away it'd be quite bad.
Are those drugs required for driving by the people who use them? I would expect if so, they would be tested more thoroughly before putting people on the road with a new drug, much like I’d rather not have someone driving toward me at a combined opposing speed of 100-120mph, two feet apart, while relying on “we didn’t think it will be a problem but we didn’t bother to test”.
That said, there is certainly room for an improvement in funding so that the FDA could go through processes more efficiently, but “efficiency” is rarely ever achieved by cost cutting because it confuses cause with effect.
I think enforcement would be poor and therefore abuse would be high, but it could be granted that they're not safe for driving and therefore if you own a pair, you must switch to different (your old regular dual focus lenses) when driving.
> For example: imagine you're driving and your whole field of vision suddenly starts flickering in and out of focus
Imagine you're driving with regular glasses and one tiny screw gives way and they fall off. Imagine you rub your eyes and your contact falls out. Those can't be 100% ruled out either.
But anyway, the FDA imposing a half decade of delays on this will do zero to prevent that from happening. The article says when unpowered they revert to being regular glasses for the main prescription. So the main reason they could glitch out like you suggest would be a software bug. After approval, a future software update could still introduce that bug anyway. So either the FDA has to find a way to review every software patch with perfect bug-detection abilities, or they are useless here and just wasting our money pretending to regulate things without adding any value.
Note that I'm not saying they have no role -- though I would say they do seem to be the worst in the first world at their actually needed job of balancing risk and access in the 'actual medications' department.
Plenty of us are simultaneously far and near sighted. I can't drive without glasses, but until I got progressive lenses I couldn't use my phone with my glasses on.
If you cannot drive without glasses, the sensible thing is to keep a backup pair in the car. After all, glasses can fall off and get lost under the seat, get stepped on, etc.
Similarly, if a FAA-licensed pilot requires glasses to fly, it becomes a legal requirement that they carry a readily-accessible second pair while exercising the privileges of their license. This even applies if they use contacts (and, no, extra contacts don’t count :).
It is also a requirement for international flight operations under ICAO regulations. I’m pretty sure this regulation (or something close to it) is enforced by just about every flight-licensing authority worldwide.
It’s plain good sense and I’m glad it’s in there. A plane cannot pull over to the side of the highway while the pilot fumbles around trying to dig his glasses out from under the seat :)
(As a side note, this rule isn’t just for dropped spectacles: there have been cases where they literally get sucked out of the airplane if a cockpit window fails or where a bird strike causing facial injuries also damages the pilots glasses).
Still doesn't address the fact that if the glasses fail mid drive it poses a serious security risk if you can't pull over to switch glasses. Doing so in a highway in a moving car is inadvisable regardless of the technology behind the glasses.
On the contrary, if you are a perfect driver and only reach for you glasses, that adds a small risk. But this is a complex system, driving and multitasking, so added complexity surely compounds, maybe even exponentially. If you are texting, then talking to your kids, then your brother next to you starts blasting loud music on the radio, adding another task like changing glasses increases the risk of an accident a lot, because less and less you are concentrated on the traffict.
That's a smart idea, similar to how I keep a little cash in the car just in case. For example, I could get something in my eyes and have to remove my contacts, and an old pair of glasses would let me get home.
According to the article the technology can be incorporated into normal prescription lenses, and when the battery is empty, it would behave as that lens without any adaption for when focusing near stuff.
It's not a crisis if you cannot read your dash. How often do you look at the oil pressure gauge, for example? As for speed, just move with the traffic.
I had a car with a broken dash. The only thing I missed for the month until I fixed it was the fuel gauge. I probably didn't estimate my speed very accurately but I was close enough to not get a ticket.
Yes, with my old cars I've had broken dashes, too. I discovered I maintained speed by the engine pitch - because when I drove a silent car, I couldn't seem to maintain a consistent speed!
As for the gas gauge, the trick is to reset the local odometer at every fillup, and you'll have an indication of the remaining fuel. Some older cars don't even have a fuel gauge, they just have a lamp that glows when it gets low.
I my case I tore the dash apart because the speedometer wasn't working, and the odometer is connected to that. Only after tearing the dash apart could I see the cable to the transmission wasn't turning. Until I found the real problem there wasn't a hurry as I removed the cable several times before I found what was really broke.
Yes, it is a problem. There should be no controversy about saying that clear vision reduces distractions and confusion when operating something.
If you want to talk specifics, you’re supposed to be able to see your speed and how your car is performing. You should be prepared for contingencies, like your temperature changing or a yellow/red warning on the dash. You may need to deal with a problem in the car, like grabbing something that could slide under the pedals.
The same goes for farsighted driving. Yes, in most cases you could just follow traffic and you wouldn’t need to read street signs or look at traffic a mile ahead. But you need to be prepared for unexpected situations, and you’ll generally do worse just mentally managing your reduced vision.
I’ve driven without my glasses and tested an unexpectedly bad trial prescription in a car, if it matters.
I think the car is 100% a use case. There are plenty of driving bifocals - they address the need to see the road, but also see the dashboard and controls.
Also, lots of older people get cataract surgery and can be perpetually farsighted (distance iol chosen)
If it worked 99% of the time, compliance would be nil, but you don't want these drivers to be affected 1% of their commute
Even if a person would be compliant, if they wore this most of the time, they wouldn't be accustomed to the varifocal lenses while driving, guaranteeing that whatever other solution than these autofocusing lenses they select for driving, they won't be adapted to them whenever they drive.
> just so that grandma doesn't accidentally install malware
That's the stated reason. The actual reason is that they are salivating at the sight of how much money the app store and play store are making. They just don't want to move too quickly for fear of customers revolting.
Really stupid on their part. There was a town with a baker and an auto mechanic. The baker saw how much money the auto mechanic was making, so he sold his bakery and went homeless because he had no car repair skills.
1) Push vs pull. As you identified, ls doesn't stop you from doing the thing you wanted to push the man page on you when you don't need/want it. ls just does the thing you ask. man also just does the thing you ask. The product tour is a sign that the developer doesn't understand consent and is trying to get the user to do what the developer wants, not what the user wants.
2) It's infantilizing. The product tour assumes the user doesn't know what they want, and doesn't know how to RTFM to learn how to do the thing they want to do. It treats the user as having no agency.
2.5) It's a tacit admission that TFM sucks and R-ing it isn't a productive use of your time.
Here's a lifehack that will extend the life of the socket by ~1000x: you can buy a 3.5mm-to-3.5mm "adapter" that you keep plugged in to the female end. Now you have a wear part that is trivially replaceable.
Of course that doesn't work all that well for laptops where it would stick out and easily break when you put it in a bag, but for that one pair of headphones you like that is no longer being manufactured it's great!
Further, "porn tokens" are the pointy end of the wedge, because it's easy to misconstrue any opposition as advocating for "kids should have access to porn, actually". The broad end that is being hammered towards is "kids aren't allowed on social media because it's harmful to them" AKA "free speech tokens".
I should not have to enter into a business relationship with google just to hand my non-technical friend an APK any more than I have to enter into a business relationship with the Linux Foundation to hand my friend an AppImage.
> The point of this is that you can use the credentials on your phone to prove that you are an adult to a website using zero-knowledge proofs to avoid disclosing your identity to anybody.
It is my understanding that this is not possible. I would be happy to be shown to be wrong, but to me it seems like you can either prevent people from lending out their credentials, or you can preserve the anonymity of the user, but not both.
You can use 0KP to prove you have a signed certificate issued by your government that says you are an adult, but then anyone with such a certificate can use it to masquerade as however many sock puppets they like and act as a proxy for people who aren't adults. You can have the issuing government in the loop signing one-time tokens to stop Adults-Georg from creating 10k 18+ attestations per day, but then the issuing government and the service providers have a timing side-channel they can use to correlate identities to service users. Is there some other scheme I'm missing that solves this dilemma?
> It is my understanding that this is not possible. I would be happy to be shown to be wrong, but to me it seems like you can either prevent people from lending out their credentials, or you can preserve the anonymity of the user, but not both.
This is not designed to prevent adults from coöperating with minors; that makes no sense as a design goal because any technical measure can always be bypassed with “download this for me and give me the file”. This is designed to prevent minors from being able to access systems without an adult.
Nothing prevents an adult from buying alcohol on behalf of minors; that doesn’t mean laws that prevent minors from directly buying alcohol are useless.
But laws against selling/giving alcohol to minors are moderately successful at curbing teen alcohol use because they carry with them a risk of punishment that grows with the scale of the operation. If all it took was one adult who thought "kids should be allowed to drink if they want" to provide all the kids in the country with free booze and that adult had no meaningful fear of repercussions, the laws would be nothing but sternly worded advice.
If the proof of adulthood scheme is truly anonymous, one adult with some technical chops who thinks "kids should be allowed to watch porn if they want" would be able to, say, run an adult-o-matic-9000 TOR hidden service that anyone can use to pinky promise that they are an adult without fear of repercussions. If such a service comes with a meaningful risk of being identified and punished, it is by definition not anonymous.
I suppose I'm just not convinced giving up some basic liberties for a law that converts into sternly worded advice if just one adult chooses to break it is a great idea.
It's always fascinating when people put "tor hidden service" in a sentence that describes something that will reach millions.
I also don't think you'll find many ISPs terribly keen to fight for the neutral treatment of TOR connections when the reason for this fight is explicitly to serve porn to minors.
Sure, the big sites could also serve the content without an age gate, both would just have to have to avoid being found as they would be breaking the law that proscribed the age gate.
> You can use 0KP to prove you have a signed certificate issued by your government that says you are an adult, but then anyone with such a certificate can use it to masquerade as however many sock puppets they like and act as a proxy for people who aren't adults
The certificates in question can use a few mitigations: short lived, hardware stored (in a TPM, making distribution harder), be single use, have a random id which the service being accessed can check how many times has been used.
> but then the issuing government and the service providers have a timing side-channel they can use to correlate identities
That's not reallya concern, IMO. That would always exist as a risk - most people would probably have a flow of trying to do something, having to prove ID/age, doing that step, continuing with the something, which means you'd probably be able to time correlate the two sides quite often. The solution here is legal with strong barriers, not technical.
Precisely. To rate-limit attestations you either need government somewhere in the loop so that they get notified and can revoke certificates when they detect abuse (but then they can correlate requests to prove adulthood with the service provider), or you need the proof of adulthood to be tied to the certificate in some way that the service provider can tell if a certificate is being re-used. But then anyone with a copy of all the certificates (read: the government) can re-run the proof on their end and figure out who is who.
The app would be restricted to environments certified by Apple or Google. Then the app can apply features like trusted time to implement client-side rate limiting.
> Just because a company folds doesn't mean they can violate licensing agreements.
It does if that's the law. Every jurisdiction routinely overrules contracts as unenforceable on the basis of some overriding law, so it wouldn't even really be that unusual. Whether it's a good idea or not is another question and one that depends almost entirely on second, third and higher order effects.
There probably is a world where all software is libre software and we still see similar rates of development, but it's not at all clear how you could get there. Especially not if you cared about the damage caused by upending the business models of a significant fraction of the world economy.
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