Hacker Newsnew | past | comments | ask | show | jobs | submit | barefoot's commentslogin

How about one million kittens or one human?


Where did the kittens come from?

If they were spawned into existence for this thought experiment, then the human, probably.

But if even one of those kittens were mine, entire cities could be leveled before I let anyone hurt my kitten.


This brings up an interesting point, our view of morality is heavily skewed. If you made me choose between something bad happening to my partner or 10 random people, I would save my partner every time and I expect every normal person in the world to choose the same.


Well humans aren’t perfectly rational.

I wouldn’t think it moral to save my kitten over a random non-evil person, but I’d still do it.


It is a rational choice tho.

It wouldn't just hurt your partner, it would hurt you.

We know that following a "objective morality" the 10 people would be a better choice but it would hurt (indirectly) you.


You’re right. Maybe rational was the wrong word.

Humans aren’t perfectly objective.


> entire cities could be leveled before I let anyone hurt my kitten

Allowing that kitten to live will cause untold suffering for other small mammals.

You have the power to stop that suffering!


Also, where did the human come from? Are they already on their deathbed, prolonged in this thought experiment for only a few fleeting moments? Were they themselves a murderer?


None of that matters if my kitten is in danger!


Collectively we kill and eat around a billion rabbits a year, around 8 million in the US. They aren't kittens, but they do have a similar level of fluffy cuteness.

It's not quite "one million to one"; the meat from 1 million rabbits meets the caloric needs of around 2750 people for 1 year.


In that case I actually ask "Who's the human?", and in about 80% of the time I'd pick the human.


One cat versus many humans. My spending on my cat makes the answer clear.


Still the human.

How about one million humans or one kitten?

Where is the cut-off point for you>?


Side note: landing on this particular website was a hilariously bad experience.

The scrollable content area on my (modern and average sized) mobile device represented less than one third of the viewport.

The remaining two thirds are taken up by ads. The bottom ad drawer (1/3) contained extremely low value irrelevant ads with blatantly false claims.

The top third was taken up by an ad seemingly from the site itself to try to get me to sign up for a free “preparedness binder”. I’m assuming that later leads to some type of marketing drip campaign.

For the icing on the cake, the central tiny (less than 1/3) area with scrollable content is an ad disguised as a poll!

I give up. You’ll find me on Gemini.


> I give up. You’ll find me on Gemini.

Blocking those ads takes far less effort for far greater gains given the dearth of content hosted on Gemini. Just block the damn things already, no holds barred, pedal to the metal, guns blazing. The only good ad is a blocked ad.


CLRS = Cormen, Leiserson, Rivest, Stein - The authors of the famous book Introduction to Algorithms.


One of the challenges of (even modern) scuba diving is that failure conditions are at odds with normal reflexes.

For example, if you run out of air your first reflex as a non-diver might be to hold your breath and swim to the surface. As pointed out in the article, that’s a terrible idea at depth and can severely injure or kill you (instead, divers are trained to breath out during an emergency swimming ascent).

There are a number of other ways to die while diving and recorded mortality data proves that out. Each dive, on average, has a broadly similar risk profile (5, in micromorts) to a single jump while skydiving (8) or running a marathon (7) [1].

There’s seemingly room for technology to help make diving a bit more safe. It will be interesting to see if that does happen in the future.

[1] https://en.m.wikipedia.org/wiki/Micromort


I have a huge problem with how people gauge risks from scuba diving. This stems from the fact that IMHO must divers are horribly under trained and under practiced for what they are doing and usually are not following best safety practices. For those that are, I think diver is significantly less dangerous than other accepted activities (in fact, I’d be willing to bet that my drive to the dive is far higher risk than my dive).

Some examples of best practices that are not widely followed:

1. never rely on a dive buddy for air redundancy. If you are diving deeper (or longer) than you can perform a free emergency ascent safely, then you should have a redundant air source. “Two is one and one is none”. You might think that you can rely on your buddy, but unless they are literally within arms reach at all times, they are not a reliable redundancy source.

2. Skills must be practiced. When was the last time you shot a lift bag, did a valve drill, unplugged your inflator hose, manually inflated your BCD/wing, doffed your mask and donned your back up mask?

3. Do you know how to reliably navigate? How do you get back to the boat? Do you know how to safely run a reel without getting tangled up and while minimizing risk to the reel line? How about in 0 vis?

4. I love my computers but I plan out every dive manually and have a rough idea of what to do if both my computers fail. You do have redundant computers right? And you know how to use them right? I did almost 100 dives before I got my first computer. I think this is a good path since I have a solid understanding of what to expect from my computers.

5. Entry level training generally skips a lot of these safety tools and skills. I once dove at a Padi resort and brought a pony bottle with me. They dive operator didn’t even know what a pony bottle was. Do you think they are actually teaching about redundant air supply?

I’m certain that having all the right tools in your toolbox, practicing how to operate them and being mindful about how to use them significantly reduces risk.

I think diving is very dangerous for un(der)trained divers and I think the dive industry does a disservice by not portraying these risks and the need for more training/skills practice.

Frustratingly, my insurance says I’m more of a liability because I dive to 53m regularly (at least before kids) than the yahoo who only dives once or twice on vacation every few years to 20m. I dive to 53m with focused planning, training, and the right equipment explicitly so that I reduce risks. And I apply those same techniques to my shallower dives.


If you run out of air, ideally you're with your swim buddy and start breathing from their spare regulator and you make a safe ascent together.


I don't know why you're being down voted, but you're right.

A diver doesn't just "run out of air". A diver gets low on gas because they failed to look at their gauges, and/or didn't plan properly.

It can happen that you get a free flow on your regulator, inflator, valve or manifold, but none of these make you run out of gas immediately. You have time to swim to a team mate and breathe from their regulator (if you are on a single cylinder and can't close any valves).

If you have a valve rolling-shut (implying you're on a twinset), you _will_ run out of air until you open it again, and you would be trained to calmly open it, or just switch to your secondary regulator.

Running out of gas can be prevented by planning the dive and keeping an eye on your gauge, depth and timer.


You absolutely can just "run out of air". Equipment malfunctions happen.

Was on a dive where one of the girls hoses blew. She didn't remember her training and shot up to the surface - thankfully we were at ~5m already, but she still got the bends and they sent her to a decompression chamber.

Buddy was recently on a trip and had both his primary and secondary regs malfunctioned while deep. He was able to swim to his girlfriend, but he's been off-put from diving since then - and he's not inexperienced.

Having a buddy is nice, but honestly isn't reliable. Most of the time I'm joining a boat as a single, and while we have our group - it's really only the dive master that's paying attention to people. Everyone else is usually inexperienced or just doesn't even think to keep an eye on others because they're out on vacation.

And even when you do have a good dive buddy, you're not usually attached at the hip. Very often you're looking at something that intrigues you and your buddy gets bored to swim a few meters a way, etc. It'll happen 1000x times in a single dive.


I would still argue that no one ran "out of air" in any of those situations. They panicked and/or ignored their training.

The thing about diving equipment (especially regulators), is that they fail safe, meaning that they fail in a way that allows you to keep breathing.

When a regulator fails, it lets gas go. You can always breathe from it. The cylinder won't empty immediately, so you can get to your next gas source (your buddy, or your next gas switch depth) - cave/mine/wreck excluded.


> divers are trained to breath out during an emergency swimming ascent

To add a little more detail to this. You should ascend as slow as you can given the emergency situation but gently hum out your air rather than breath out. This slows it so you avoid the panic of empty lungs when not near the surface and also allows air to escape if it’s expanding quicker than you are humming :)


Instinctually (well, once you overcome the most naive instinct of holding your breath) one might think they need to exhale fast enough that the expansion of volume in the lungs doesn't outpace the rate of exhalation, but in reality even the slightest bit of intended exhalation will keep the airway open enough to prevent lung issues, right?


Yes, the point is to keep the airways open, but that’s hard to demonstrate hence the suggestion to “make a stream of small bubbles as you ascend”


That was what I was taught at least when I learned recreational diving.


Interesting concept… it seems diving is only about 1/4 as dangerous as the average other risks people take in a day, so it seems pretty inconsequential in overall risk unless you are a professional and dive multiple times daily for years on end, but I would guess a pro had less risk per dive due to skill.


Diving with a buddy (which you should absolutely always do) in good weather basically reduces risk to zero as long as you don't get too far away from each other. The chances of four regulators failing (two main, two octopuses) are close to nil.


…as long as you don’t penetrate a wreck, dive under ice, or dive in a cave. Since a roof severy decreases the chance to survive if something happens and you need to surface.

Also, of course, tech diving, typically below 40m, can also severely limit the ability to emergency ascend to the surface without injury.


Also as long as you keep a line straight to the surface. Cave diving and wreck diving are far, far more dangerous, and require special training. There are many ways to die if you can't just head straight up for oxygen in an emergency.


I strongly disagree that one should always dive with a buddy. But I’ll also say that one shouldn’t dive alone. Exit and entry are usually the most dangerous part of the dive.

Diving in low vis, spear fishing, or confined spaces don’t match with having a dive buddy. But they do match with redundant air supplies and other safety measures I mention in another comment.

Also unless your buddy is literally within arms reach at all times, they are not a redundant air source.


Is limited supply reason enough to explain the high market prices or has there also been an increase in demand?


Unfortunately as long as there's a perceived shortage scalpers will be competing amongst everyone else who have no intent on reselling.


But who's willing to buy Raspberry Pis for $115 when there are so many alternatives on the market that are drastically cheaper?


The many alternatives do not, of course, have the huge community that's built up around the Pis. Hundreds (thousands?) of projects for example.


I understand, but part of the draw of Raspberry Pis is the price. When that price goes up by 20x, I can't imagine very many scenarios where that would still be worth it, regardless of the size of the community.


Is there some unobtainable chip on the board that other manufacturers need and are buying up?


I agree that we’re practically in a recession and that our present recession was brought about from congress via the fed. However, that particular chain of events was set in motion in the 1970s with the public mandate set for the FOMC. It wasn’t a recent secretive reaction to tech companies.

Do you mind expanding on your statement that the current actions of the fed/congress are a reaction to technology companies?


I’ve had some luck with Remarkable. Remarkable has a reasonably good experience for getting a PDF to the device, working with it, and then getting it back to the source as a seemingly plain PDF.


I’d imagine it might be technically possible but not practical. The weight required for ballistic parachute systems is substantial. On small aircraft (such as Cirrus and Icon) it reduces the useful load, and thus range/payload, substantially. Range and payload are very important aspects of commercial passenger aircraft.

Further, commercial passenger aircraft are already very safe due to system redundancy not practical on smaller aircraft. Would a ballistic parachute system help with many accidents in this category? I would be willing to bet not. Ballistic parachute systems are not a magic bullet - they require substantial altitude/time to deploy (as much as 900 feet in a spin, for example). Many substantial aviation accidents happen during takeoff and landing below or near these altitudes.

Would you pay a multiple of your current airfare for an extremely small (practical) reduction in travel risk?


Man's Search for Meaning by Viktor Frankl (1946).

A close runner up might be Liar’s Poker by Michael Lewis (1989).


> man’s search for meaning

Loved this book the first time I read it. Couldn’t finish it a second time. I think some of the darker parts were too much during an already difficult year.

Giving it as a gift to my nephew though.


I love Liar’s Poker!

Signed: BSD


I’ll bite, here are a few relevant observations.

I like honey bunches of oats cereal. It’s delicious. The variety I like is also ~200 calories _per cup_. That’s before adding milk of any kind. Add a little bit of milk and tip the box a bit more than usual (I imagine a lot of folks are not very precise when measuring breakfast cereal) and we’re easily sailing over 500 calories. I eat a modest 1700 calorie diet most days and I could easily crush 1,000 calories of this cereal without even feeling full.

Likewise for sandwiches. The best rated local sandwich shops near me offer a selection of (very likely) 1,000+ calorie sandwiches. They also do not list calories so my estimates are based on casually deconstructing them and plugging in constituent ingredients into MyFitnessPal ensembles with surprising results. It’s surprising because I’ve proven I can eat more than one without feeling full.

It doesn’t take a mad genius in an evil food lab somewhere underground to make food that’s guaranteed to derail a diet. The ingredients are cheap, easy, and abundant everywhere.

That’s the problem.


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: