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A weird part about the modern world is that a cell phone is incredibly cheap compared to shelter, food, or just about anything else. You’d be surprised how many homeless folks have phones.

Astronauts are, as a group, extremely risk loving. Every single person who signs up to go into space knows what they’re signing up for - they’ve spent their entire life working for the opportunity to be put in a tin can and shot into orbit atop a million pounds of explosives. There’s a very valid critique that NASA has become far too risk averse - we owe it to the astronauts to give them the best possible chance to complete the mission and make it back safely, but every single person who signs up for a space mission wants to take that risk, and we don’t do anyone any favors by pretending that space can be safe, that accidents are avoidable, or that the astronauts themselves don’t know what they’re signing up for. A mission that fails should not be considered a failure unless it fails because we didn’t try hard enough.

My father, who flew combat missions for the Navy in Vietnam and then became a test pilot, told me after the loss of Columbia that if he had had a chance to make that flight and spend 7 days in Earth orbit, even knowing that he'd burn up on reentry, he'd have done it.

One way to see it:

  1) Eventually you will die, no matter what. It can be the most mundane thing. Slipping on a ketchup splatter can cause great damage for example.

  2) It's a profession where you intentionally kill people, so, that changes the calculation for your own risk.

  3) It's a unique opportunity.
(and potentially)

  4) Gives a sense of living / be in history books for his family.
So you have a possibility of a guaranteed exciting life for a death that you anyway will have, but doing something you love, it's not too bad.

> It's a profession where you intentionally kill people

Not being an astronaut (or being a test pilot, for that matter). That's the context in which he was speaking.


Your father is a better man than I am.

Highly recommend The Right Stuff by Tom Wolfe about the Gemini astronauts. They mostly were test pilots prior.

The movie was good too. I haven't seen it in years, but from memory:

Gordo! Who's the best pilot you ever saw? -- You're lookin' at him!

Loan me a stick of Beemans.

Light this candle!

It just blew!

No bucks, no Buck Rogers.


This is one of the things that’s deeply challenging for biology and biochemistry - it’s extremely resistant to the sort of reductionism that works so well for other fields. It’s rare to find a single compound, a single species, or a single pathway that’s responsible enough for an effect to show up in studies of the sort of power that one can muster without a ton of time and money, and as soon as you try to capture synergistic effects, you hit a combinatorial wall quickly. In microbiology, for instance, colonies of different bacterial species are the norm, not the exception, and metabolic pathways that span multiple species are common to the point that trying to isolate a given species’ contribution can miss the effect entirely.

> metabolic pathways that span multiple species are common to the point that trying to isolate a given species’ contribution can miss the effect entirely.

What does this mean?


So, a metabolic pathway is the set of steps by which an organism converts one molecule into another - this can be by splitting a molecule into pieces, by adding or removing an atom or small group of atoms, or by combining two different molecules into a larger or more complex one. By way of a very, very simple pathway, your body breaks down ethanol (alcohol, C2H5OH) by first removing a hydrogen (and causing the oxygen to double-bond to the carbon) to create Acetaldehyde, CH3CH=O, and then oxidizing that by swapping the H remaining on the second carbon for an OH to create Acetic Acid, the primary component in vinegar. So, when we say your body metabolizes ethanol into acetic acid, we're talking about a two step metabolic pathway.

Bacteria can stash intermediate pathway results outside of their cell wall for various reasons (sometimes the chemical environment is more amenable outside the cell than inside, sometimes buildup of the intermediates can disrupt other processes, sometimes that's just how it happens - biology is weird), and very often what you'll see is that a multi-step metabolic pathway can span across multiple different organisms - so, species 1 takes up a starting material, performs a handful of modifications, and then excrete the results outside the cell wall, and then another species will take up that substance and perform additional modifications on it, and this can run through several species before reaching the terminal state in the pathway (including the first species again). This works because each bacteria can have different enzymes and different internal chemistry which can affect how easy or likely a reaction is.

Nitrogen fixing is a notable example of this - it's not just one species in the roots of legumes responsible for taking N2 and converting it into ammonia, there's 6 or 7 that take part in that pathway.


I think author is saying that you ingest compound A, microbe 1 eats A and secretes B, microbe 2 eats B and releases C. C happens to do <positive thing>. You could imagine parallel pathways where maybe microbe 2 only works if it is in the presence of microbe 3.

Meaning everything is a mess to try and disentangle.


Hopefully AI can help us parse some of these massive data sets and interactions.

I run both (LS on Mac, at least), they do different things - pi.hole is a great ad blocker which applies to all of the devices on your network. Little Snitch is doing something different - it tells you every call that every app you use is making, and allows you to approve or deny each one. So, you can block telemetry for apps, or you can block certain apps from contacting certain servers, or you can just use it to watch what apps on your system are calling out to where.

To clarify, I'm aware that pihole is not intended to run on a client OS, and doesn't monitor at a process level. I'm focused on the intended effect rather than the process itself (blocking malicious/ad servers). And I think I framed my initial question incorrectly as if LS and PiHole as subtitutes. It's perfectly fine and even preferrable to use both as layered protection. I'm just thinking however when it comes for bang-for-buck it seems like PiHole is the better value proposition if you could only set up one.

pi.hole is primarily billed as an ad blocker, but the fundamental way it works is by applying a curated set of DNS lists that are blocked (commonly telemetry and ad servers), and the admin dashboard which is just a web page (therefore works on all platforms, smartphones included) will do the same thing: it tells you every call that every app on every device on your network is making, and you can approve or deny it. You can curate your own list as well and block servers/connections you don't want on the network.

LS afaik operates in the same area where it's intended to be used for privacy. I guess I could see it being useful for people who don't have admin access to their router, but for people who do have such access I would think the benefits of network-wide DNS monitoring/blocking would outweight the costs of having to configure your router settings.


Yeah, if you're just looking for ad blocking, you're right, pi.hole is the better bet.

Little Snitch is intended for per-process, per-connection blocking - for example, you may need, eg, an Instagram uploader app to contact Meta's servers, but an unrelated app should not be able to (and even in the case of the hypothetical IG uploader, you can get very fine grained about the controls - media.facebook.net, not telemetry.facebook.net). In that way, LS does have some advantages over pi.hole in that space - You'd need to set up every single item that you normally get for free from a blocklist, but it gives you much finer control over what's getting blocked and much better visibility into what connections your processes are trying to make.

Again, I don't think Little Snitch is the right answer if you're looking for ad blocking specifically, and if that's the extent of your privacy concerns, pi.hole's a better bet. Little Snitch is a per-application connection monitor and firewall - it _can_ block ads, but that's not its primary purpose.


LS seems to not be claiming any security promise on Linux because it can't make any guarantees given eBPF limitations. But the entire purpose is different and there is very little overlap in my view. PiHole is entirely (I think?) just applying the blocklist made easy. LS allows you to build the blocklist in real time.

I would guess that to the extent the blocklists include things that are loaded by applications and not websites, they are almost entirely built by users of something like LittleSnitch or OpenSnitch. This is also entirely doable with wireshark logs, but I think that requires more infrastructure to build into usable lists.


Some telemetry uses hardcoded addresses when DNS doesn't work.

Some telemetry might not be recognized by pi-hole as it is new or has nothing to do with ads.


> How come any ships don't turn their transponders off and try to make a run for it?

Because the cost of failure is death and the crew aren’t going to risk it, and the other cost of failure is a couple hundred million dollars in ship and cargo and the insurance companies aren’t going to risk it either. This is like asking why your DoorDash driver wouldn’t just try to run the police blockade to get you your burrito.


> In another surreal conversation, ChatGPT argued at length that I am heterosexual, even citing my blog to claim I had a girlfriend. I am, of course, gay as hell, and no girlfriend was mentioned in the post. After a while, we compromised on me being bisexual.

This is a bit of a throwaway in the article, but when people talk about biases encoded in the algorithms, this is what they’re talking about.


They do more than that - our local PD gave a presentation on what Flock’s pitching - ALPRs, fixed pan/tilt cameras, “citizen cameras,” drones, and a whole “sensor fusion” software suite that lets you stitch in everything along with data from surrounding precincts which also have Flock (think Palantir for local cops). We were pretty shocked at the scale.

Kobo has a bookstore that’s pretty comprehensive - I haven’t found anything missing. Not sure that gets you out of DRM land, but at least you’re not giving money to Jeff Bezos.

Brother, I live in Oakland. To hear it from the media, statistically I’ve been dead for a decade now. This is always the narrative around cities, which is fine, because it keeps away the kinds of people who find my town scary instead of invigorating.

You can send a submarine down to crushing depths while violating all the traditional rules about "good" engineering, too.

Right, and often the tested depth isnt maximum. So you slowly acclimate to worse and worse code practices if the effort needed to undo it is the same as doing.

> if the effort needed to undo it is the same as doing.

That’s the rub, yes - as long as your failures are nice and gradual and proportional to the changes you’re making, everything’s fine.


sure, but undo isn't the only path to a newer better version of the code

it's easy to see how the product (claude code) could be abstracted to spec form and then a future version built from that without inheriting previous iterations tech debt


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