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We use lasers in lots of consumer products, we don't really have any with exposed lasers. You just can't guarantee that someone doesn't flip a quarter and blind

We use lasers in lots of consumer products, we don't really have any with exposed lasers. You just can't guarantee that someone doesn't flip a quarter and blind themselves. It's a cool idea but pretty impossible to be safe.

feupan 5y ago
I think the chances of a quarter’s reflection aligning to your eye while the laser is on and pointing at it are pretty damn slim. If that’s still too high, you better eliminate all corners in your kitchen because someone is going to lose an eye. And don’t get me started on forks.
- bmitc 5y ago
  Lasers are assigned a classification and regulated. You can't just get a lower classification just because. You can severely damage your eye (and more) with a laser, which may not even be visible. If corners and forks were invisible, traveled at the speed of light, propagated over large distances, were regulated, and could affect aircraft, then maybe your analogies would work.
- true_religion 5y ago
  The laser is designed to shoot small things in the air. If you flip a coin, and the system has a bug that determines the coin is a bug then it'll shoot. Since you're surely planning on caching the coin, you'll look directly at it in flight. Now... you're blind.
  - feupan 5y ago
    That’s not how reflections work. Also there’s no bug as big as a coin that such a system could/should kill, so it’s pretty easy to not misdetect that. Again, corners have a higher probability of ending up in your eye than even just someone flipping a coin in 2022.
    - 14 5y ago
      The comment said your system has a bug as in it malfunctions and decides to shoot the coin anyways, and his other point was you will be looking at the coin wide eyed so perfect chance for a reflected laser to hit you in the eye if by chance the correct angle happens to line up and send it back to your eye. Also, I've seen too much unbelievable stuff actually happen so nothing is unbelievable in 2022. Yes we are talking highly unprobeable but with 7 billion people on earth we have to account for the unprobeable to happen.
      - CamperBob2 5y ago
        And how many of those 7 billion people will die of mosquito-borne diseases...? It's time to wipe out them out. We don't need mosquitoes, and neither does Mother Nature. Use gene tech to do the job, not Rube Goldberg hacks with lasers.
        14 5y ago
        Oh I am all for laser defense, I was merely pointing out that op is correct in that a system like this will likely go wrong some how. But I honestly don't think they would use them in household setting but rather use them on the outskirts or around ponds and use it for other pests in fields away from human eyes.
        tabulatouch 5y ago
        Ok.. So bats die of hunger, we don't need them either, and all the way up to humans (AI said...)
        CamperBob2 5y ago
        Bats don't need mosquitoes, either. https://www.gardenmyths.com/myth-bats-eat-mosquitoes/ https://www.gardenmyths.com/myth-bats-eat-mosquitoes/
      - feupan 5y ago
        Right, because nothing else we already use has any chance of causing permanent damage. Nothing at all. Leave your bubble, I’m talking about relative probability, I’m not saying that it’s “impossible.” We accept far greater risks in our daily life than this.

feupan 5y ago

I think the chances of a quarter’s reflection aligning to your eye while the laser is on and pointing at it are pretty damn slim. If that’s still too high, you better eliminate all corners in your kitchen because someone is going to lose an eye. And don’t get me started on forks.

bmitc 5y ago
Lasers are assigned a classification and regulated. You can't just get a lower classification just because. You can severely damage your eye (and more) with a laser, which may not even be visible. If corners and forks were invisible, traveled at the speed of light, propagated over large distances, were regulated, and could affect aircraft, then maybe your analogies would work.
true_religion 5y ago
The laser is designed to shoot small things in the air. If you flip a coin, and the system has a bug that determines the coin is a bug then it'll shoot. Since you're surely planning on caching the coin, you'll look directly at it in flight. Now... you're blind.
- feupan 5y ago
  That’s not how reflections work. Also there’s no bug as big as a coin that such a system could/should kill, so it’s pretty easy to not misdetect that. Again, corners have a higher probability of ending up in your eye than even just someone flipping a coin in 2022.
  - 14 5y ago
    The comment said your system has a bug as in it malfunctions and decides to shoot the coin anyways, and his other point was you will be looking at the coin wide eyed so perfect chance for a reflected laser to hit you in the eye if by chance the correct angle happens to line up and send it back to your eye. Also, I've seen too much unbelievable stuff actually happen so nothing is unbelievable in 2022. Yes we are talking highly unprobeable but with 7 billion people on earth we have to account for the unprobeable to happen.
    - CamperBob2 5y ago
      And how many of those 7 billion people will die of mosquito-borne diseases...? It's time to wipe out them out. We don't need mosquitoes, and neither does Mother Nature. Use gene tech to do the job, not Rube Goldberg hacks with lasers.
      - 14 5y ago
        Oh I am all for laser defense, I was merely pointing out that op is correct in that a system like this will likely go wrong some how. But I honestly don't think they would use them in household setting but rather use them on the outskirts or around ponds and use it for other pests in fields away from human eyes.
      - tabulatouch 5y ago
        Ok.. So bats die of hunger, we don't need them either, and all the way up to humans (AI said...)
        CamperBob2 5y ago
        Bats don't need mosquitoes, either. https://www.gardenmyths.com/myth-bats-eat-mosquitoes/ https://www.gardenmyths.com/myth-bats-eat-mosquitoes/
    - feupan 5y ago
      Right, because nothing else we already use has any chance of causing permanent damage. Nothing at all. Leave your bubble, I’m talking about relative probability, I’m not saying that it’s “impossible.” We accept far greater risks in our daily life than this.