Recent submissions

Comment · 6 hours ago
That seems like the definition of anti-intellectualism because you're making an implicit value judgement that developing the skills to be successful in a corporate environment is more legitimate that developing the skills to be a successful researcher and/or teacher. Many people who began their careers in the private sector would make lousy academics, but few would hold that against them as evidence they failed to develop broader life skills.

Although in reality it probably doesn't make sense to talk about the private sector as some homogeneous representation of the rest of society in the first place. Many people outside of academia famously struggle to adapt their presumably well developed "wider life skills" to significantly different environments, like switching industries or going between large companies and small ones. There's really no universally applicable life skills or experience that everyone except academics pick up.

Comment · 6 hours ago
I definitely agree existing in a particular silo gives you a narrow view of the world, but I've never understood the idea that the silo of academia is somehow worse or less representative of the broader world than small town living or being in the military or any of the other silos many people exist in. The real world almost by definition is made up of the combination of all the things people do and the environments in which they exist.

Obviously being a truck driver is different than being a physics professor. But I'm not sure there is much of a coherent argument supporting the idea that the former exists in the real world while the latter does not.

Comment · 7 days ago
I agree with the general premise that US tech isn't exclusively in Silicon Valley or Seattle. But those regions clearly still play an enormously outsized role in the US tech industry, to the point where it seems unlikely US tech would be as globally dominant without them.

Notably several entries on your list are companies that were founded and grew successful before moving to the locations you listed, often for tax breaks and/or to fit the politics of the company executives. Aside from Dell, all the companies you listed as being located in Texas became successful elsewhere first. Texas has proved it can lure in already successful companies more than it has demonstrated it can grow them.

Which is itself a legitimate achievement, but if the question is how you grow new successful tech companies, it's not a super useful data point especially if we're taking about different countries. There are relatively few barriers for a company that grew up and became successful in the environment of Silicon Valley to move to Austin with the promise of lower taxes, but Europe can't quite replicate that same migratory model to grown their own tech industry.

Comment · 9 days ago
That's hasn't been my experience at all with at least some local rental companies. A popular vacation area near me has a local rental company with significant market share and they have a local office and local staff that can come out to help with things like maintenance issues.

I've used them a lot and have found them very responsive with none of the Airbnb type horror stories. For vacations where you want a house instead of a hotel room, companies like this are a VAST improvement over Airbnb because they offer the type of local service that Airbnb will never be able to do at scale.

Comment · 12 days ago
Sure that works, but now you have a worse version of the refueling experience you'd have with a gas car. Significantly slower for comparable prices and superchargers are still much less common than gas stations. Very tolerable on an occasion road trip. Less than ideal for everyday use.
Comment · 12 days ago
Look I'm very pro EV, but there are plenty of people for whom buying an EV would be the dumb decision. Most significantly, those who can't charge at home and have to rely on public charging. Yeah you can make that work, but you lose a significant portion of the benefits of an EV by doing so, to the point where an EV is no longer an obvious choice.

Of course 99% of EV drivers want another EV as their next car, since they're the people who presumably figured out that an EV would fit their needs. I'd be curious what the statistic would be if you gave everyone and EV and asked if their next car purchase would also be an EV. I bet it wouldn't be anywhere close to 99%.

If you want to expand EV market share, which I do, maybe spend more time figuring out how to make EVs work for more use-cases and less time assuming people who don't buy them are just dumb.

Comment · 12 days ago
Sure China is an authoritarian dystopia, but it's not like that's a necessary tradeoff you have to accept to have a civilization that's rapidly advancing in technology.

In fact if you believe democracy is the superior system of government, it's arguably even more embarrassing that an authoritarian single party state run by billionaire communists is somehow doing a better job as a technologically advanced civilization that a lot of democracies.

Ultimately it doesn't really matter though. The future will at least temporarily belong to those who get there first, regardless of their system of government or other issues. If other countries don't want China to own the 21st century, they should act like it.

Comment · 16 days ago
Anecdata and all that, but my observation as a long time Twitter user is that it was always possible to find conservative voices on the platform. What has changed with Elon is the proliferation of accounts with names like PatriotMom1776 positing hundreds of times a day exclusively about how Democrats are Islamist Communists. Ironically, I've found it harder now to find good content from real conservative posters who I might not agree with but who offer a different perspective to my own.
Comment · 19 days ago
Length extension attacks are only one of the issues you can run into, so even if you use SHA3 or truncated SHA2 as your hash primitive you still shouldn't be rolling your own keyed hash construction.

The article references this as "YoloMAC" with a link to a pretty good Trail of Bits blogpost about it. But the TLDR is that just prepending the key to the message can lead to ambiguous encoding problems, so you still need to add extra complexity to your hand rolled keyed hash to handle things that the underlying hash primitive isn't going to protect you from on it's own. You're better off using a non-hand-rolled construction that protects against all the things including length extension.

Comment · 23 days ago
It's actually much worse than that. Institutions were rarely able to actually detect said compromise, leaving attackers with certs that were indistinguishable from the real thing and valid for a long period of time. Even when institutions could detect the compromise and could quickly rotate certs, getting users to not still trust the old ones could be a non-trivial challenge.
Comment · 23 days ago
I agree with you that it's a very good thing, although I think the automation is less the end goal and more a means to an end. The end in this case being moving the idea of webpki certs from pets to cattle and the positive impact that has on the security of webpki.

The original idea of these certs, that they're very valuable long-lived secrets that have to be carefully hand managed and protected, while simultaneously being accessible to your active infrastructure, was always going to be too brittle. The idea of short-lived secrets that are regularly reissued allows for much more robust validation and less catastrophic failure modes.

I'm generally not dogmatic about this kind of thing and think there are often multiple right answers. But short-lived webpki certs are one of those things where if people don't see the value, I'm convinced they're not thinking about security correctly.

Comment · 23 days ago
Even if your own personal key handling security measures are better than the security of your domain registrar, which I seriously doubt is the case for most people who handle certificates, the impact of an attacker managing to obtain your real long-lived cert is significantly worse.

An attacker who manages to get a cert provider to mint a new certificate for your domain might be able to appear legitimate, but remember that it's a new cert, not an identical one to the cert you already have. You as the domain owner can easily detect this new cert was created using CT logs and visitors to your site can potentially detect two certs for the same domain depending on whether the attacker can convince them to only visit the spoofed site. Short lived certificates also mean the attacker must execute their new cert attack frequently if they want longer term success.

On the other hand, an attacker who manages to penetrate your impenetrable personal cert management security measures now has the real cert they can use to pretend to be you for as long as your certificate is good for. And unless you detected their one-time break-in, there is no way for you or anyone else to tell this is happening since the attacker is using a cert that matches the real one byte for byte.

Edit: I forgot to mention that short-lived certs are also a response to the general challenge with certificate revocation mechanisms as a reliable way to respond to the unlikely event that you actually detected your long-lived cert was stolen. Even if you figured out an attacker stole your certificate, convincing users to not keep treating it as valid has a lot of interesting failure edge cases. You might just have to wait for its validity period to expire.

Comment · 26 days ago
I'm not saying they're necessarily wrong in this specific case, but basically every change in every single sport ever is treated by the participants and "serious fans" as a horrible idea that will be the death of the sport.

Sometimes changes really are bad and are reverted, but more often the changes eventually get accepted and years later everyone involved treats it as an integral part of the sport.

Even "serious fans" almost always seem to be biased by the state of the sport when they started watching. Every change since that point is horrible and misguided, but they rarely argue for reverting changes that happened before then.

Comment · 27 days ago
> Anyway, a very optimistic calculations means you need the flat area of at least 800 m^2 in a sunny climate, to charge a single electric truck to full power.

The math the person you're replying to was talking about was solar power vs ethanol. While your 800 m^2 sounds like a lot of land area for enough solar panels to fully charge a large electric truck, it's basically nothing compared to how much land area you'd need to grown enough corn to produce enough ethanol to power a similar truck. It's about 500 times as much land area, a fairly obvious result when you consider you get solar power from the land basically every day and corn once a year. Growing plants for ethanol is dumb.

Of course the benefit of a combustion engine is that you don't need to grow corn to make ethanol for it, at least as long as you can get fossil fuels out of the ground and the enemy doesn't disrupt your supply chain for drilling and refining fuel oil. But that's irrelevant since that wasn't the land-use comparison the parent poster was making.

Comment · 1 month ago
Shorting it would only make sense if you believe the stock value is at all correlated to the technical feasibility of the long term vision. I think the entire point of the person you're responding to is that it's fairly obviously not.

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