throwawaycert

In the 60s/70s, an EE/CS guy named Leon Chua did some clever math that suggested we could build transistor-like devices that had a non-linear relationship between charge and flux and called it a memristor. He didn't build one, and as far as I know it's not something he's spent all that much time on since.

In the 90s somebody at HP must have mentioned memristors in hearing range of their marketing department and suddenly HP was going to have a product to market in a few years.

Yeah. Never happened. Nobody's done it.

In theory, such a device could allow us to do things like build extremely low power non-volatile memory (a flash replacement, basically). A lot of marketing hype has talked about completely replacing computer RAM with non-volatile memristor-backed memory, but again, neither it nor anything like it has happened. But as it turns out, battery-backed DRAM covers a multitude of sins anyway.

The actual debate over physical possibility is because it's too low-power, to the point that an actual implementation might violate lower theoretical limits on the amount of energy required to change the state of a bit. In other words, it might violate the second law of thermodynamics, which is something of a problem.

Obligatory reminder that "memristor" is mostly a marketing hype word at this point. No clear example of the original memristor hypothesis has ever been crafted, and there is wide disagreement on what should or shouldn't be called a memristor, and it's not even agreed whether a memristor can physically exist at all. And hearing about the "first" memristor <whatever> is basically a biannual occurrence.

Also, reminder that even if someone manages to make a real memristor and everyone agrees it is a memristor, it may not end up being a big deal. They have some nice hypothetical properties, but they're not magic, and any widespread use would probably take decades.

Oh, that's right, it's because iOS normally doesn't allow dynamic code modification in memory. That's not an iOS specific thing at all, Apple is just one of the few companies willing to make that nod to security.

The only JIT “restriction” is App Store policy. No downloaded code is allowed unless it’s JavaScript (and runs, as it happens, on one of the JITs iOS has built in). This is policy, not technical limits. You can even install a Python environment and code in it. And, as it happens, write code that downloads other code to be evaluated. Because you did it on your device with full knowledge. Not the developer who put it in the App Store.

I’m not even going to try and address whatever weird issues a console emulator might have, those always have problems being ported to non-x86 platforms, especially when they include a JIT. As it happens, dynamic recompilation of machine code not designed for that purpose can be pretty damn hard. Take a look at the posts the Dolphin emulator team make about the fun they encounter.

> Who wouldn't push this button?

My father's entire family, who have literally said that being homeless should be a capital crime because it proves how useless you are.

Yes, bad people do exist. Why is this still a surprise to conservatives?

So you think, in defense of free speech, Google shouldn't be allowed to talk about what it found in Apple's products.

iOS allows JITs.

This is exactly what I'm talking about. You're using bad or outdated second or third-hand info with no regard for the game of telephone involved in getting it to you, nor the anti-Apple zealots obfuscating the truth on its way.

I didn't even know there was a three app limit on it. Most people don't use very many apps. But yes, quite a lot of us routinely sideload apps on non-jailbroken iOS devices.

They already require periodic resigning of self-signed side-loaded apps on iOS, it doesn't stop even relatively casual users.

(That's actually the funniest part about all this, now that I think about it. While everyone is wailing and gnashing their teeth about some speculative possibility that macOS ends up locked down like iOS, Apple has been making iOS more open.)

Any ability to execute arbitrary code is the ability to bypass the MAS. What's more, it's nice and efficient - iOS apps in development are compiled right to x86 machine code for the "simulator" that is little more than a thin VM.

100% of the projections I've seen about MacOS becoming a walled garden have been from people that don't actually have any real familiarity with Apple's ecosystem as developers.

The scenario you propose would eliminate the ability to develop apps for iOS. Are you suggesting Apple is actively trying to kill the iOS app store?

I have a question. If these painful, legalistic processes of local government didn't exist, do you think your bad neighbors would just stop bothering you, or do you think maybe they'd just shoot you to get rid of the problem?

All these things you make sound "bad" are exactly how we solve interpersonal problems without violence.

The practical effect of what you suggest is that I have to suffer from overtaxed infrastructure because individuals around me made poor judgements. Which is exactly why these rules exist. The planning process is how society manages its infrastructure.

They didn't know they went too far at the time, and it didn't become obvious for years. But they knew they were getting close at least, and stopped. We'd be worse off if they hadn't denied subsequent projects.

The mere existence of a house on the other side of even a fairly big town can affect the fire safety of your house, because it affects the likelihood that emergency responders in the area will be overloaded by an excessive number of fires or medical calls.

Everything is interconnected.

I am living through the effects of allowing excessively fast growth right now. For most of this year and possibly into the next, my driveway is almost unusable while the road is ripped up and utilities completely overhauled because there was just no choice anymore. The whole neighborhood had shit water pressure and constant sewer issues because the city council 20 years ago approved a few too many apartment buildings. It's not about income levels, it's about planning.

This isn't the sort of thing you talk to "city officicals" about. There is almost certainly a political entity in your city/county made up of appointed or elected citizens called something like a planning commission. You do not talk to the city employees, they implement policy. You need to talk to the politicians who make policy, and have the policy modified for your project, if it will serve the community's interest.

None of these things are actually true.

Zoning laws are defaults. By default, you have to provide a certain amount of parking, or are only allowed to put up one additional unit, without additional planning authority. That's an important phrase. If you start building a bunch of houses on your land, you may overload available transportation, utility, and public service capacity. That is why you must first go to a planning commission.

You know what happens 90% of the time when someone with a hundred thousand sqft lot wants to add another house? You fill out some paperwork requesting a zoning variance and get your answer in a few weeks.

The point is more to not try timing the market. There are all sorts of things one could reasonably say about what would be right or wrong for these unstable areas, but fundamentally the most long term good would be if they could engage in slow but steady development of both their natural resources and their infrastructure. I'm quite confident lithium will continue to be quite valuable for at least a generation. Remember, we still use NiMH and even NiCad batteries in some cases. Even if science has already discovered the magic new battery chemistry that will replace lithium ion, you're most likely looking at 5-10 years before the very first commercial applications come about.

I don't remember exact context, but I recall a long time ago someone was talking about shipping medicine and such to a particularly poor area of Africa, and the reply was basically "There are no roads here to ship the medicine on."

Those numbers you found are only for liner shipping, not all shipping.

Yes. It’s not splitting hairs, it’s looking at the root of the problem: Americans live inefficiently and in our bubble it seems “normal” because we have normalized severe deviance from good social, economic, and environmental practices and lifestyles.

There is still a serious linguistic disconnect here. You’re talking about what are essentially suburbs. Big cities are mostly apartments and condos. This is true throughout the developed world including in the US, but for some reason in the US we ended up calling every group of houses and a general store “city”.

Yes but that happens over tens, hundreds, thousands, millions of years. It may be practical one day to stay ahead of it.

So are a lot of other people. We are in yet another AI bubble. It is far, FAR from the first, and will not be the last. Thiel is just yet again trying to paint the ordinary, boring daily activities of his ideological opponents as somehow bad and use the military-industrial complex and national security apparatus of a country he defected from to try and violently suppress them. Another right-wing terrorist isn't news and we should stop giving their insane ramblings coverage.

More than a quarter of Google's traffic today is IPv6. So apparently ISP's representing a quarter of their traffic don't consider the marketing oxymoron that is "carrier grade nat" an adequate substitute for IPv6...

NRT is also used to treat people suffering (and I do mean suffering, it's a horrid burden) from ulcerative colitis. Maybe don't spend too much energy shitting on one of the only forms of relief available to them?

While in a de jure sense this is true, de facto the FAA effectively does have oversight over many (maybe most) commercial aircraft all over the world. Small countries in particular do not have the resources necessary to exercise meaningful oversight over every type of aircraft on the planet, and defer to FAA decisions in virtually every respect for Boeing and other American-made aircraft, and the US FAA and NTSB are involved in the investigation of virtually every incident involving a Boeing aircraft anywhere in the world.

Even larger, well-resourced geopolitical entities like the EU rely heavily on the FAA to do its job for Boeing aircraft, much as the FAA relies on the EASA to do its job for Airbus aircraft. It's not pure rubber stamping, but it's close enough that things like this can pretty easily happen if a manufacturer's home agency falls asleep at the switch.

An example of the FAA's influence: Airworthiness regulations are so closely coordinated that special numbering is used by Canada, Europe, and Japan to match the numbering of FAA airworthiness regulations for easy cross-referencing. The FAA is also delegated air traffic control responsibility for much of the world's international airspace by the ICAO.

It is basically impossible to fly a commercial aircraft on Earth without being under the – possibly very heavy – influence of US civil aviation authorities, and it would take a great many resources and serious, concerted political will by many countries to change that.

Let's Encrypt specifically does not rate limit renewals. See the renewal exemption in the 6th paragraph of [0]. A "renewal" is any certificate that would count as a duplicate – that is, using the same set of names as another valid certificate. It doesn't count the keys. So you can always reissue existing certs.

[0] https://letsencrypt.org/docs/rate-limits/