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  • Why do you consider it an issue?

    Let me put it this way: if the costs of buying a Mac is too much, you certainly can’t afford the developer that needs to use that Mac. The cost of the hardware is such a tiny part of the total cost of developing an app that it’s laughable to consider it a major obstacle.

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  • Which is a complete non-issue.

  • I can't understand why people refuse to wear helmets when riding.

    Because wearing a helmet makes you more likely to be in an accident and increases the risk of brain injury when you are.

    The first has two causes:

    The second:

    • A helmet effectively makes your head larger, and as such increases the risk of your head hitting the road. In fact your risk doubles. source
    • A helmet protects against ‘focal’ injuries, that is injuries at the point where your head hits something. But a another type of brain injury is ‘diffuse’ injury, basically the fact your head hit something at all, and your brain rattles around in the skull. This type may cause worse problems than focal injuries. The added size of the helmet amplifies the rotation of your head on impact and makes this type of injury worse. source. Add to this the fact that wearing a helmet makes you more likely to hit your head in the first place.

    In addition to this, wearing a bicycle helmet makes cycling less attractive, and as a result people will cycle less. This results in a loss of health benefits from cycling.

    Sure, intuitively you might think a helmet will make you safer, but intuition is often wrong. When you look at the actual data it shows a different picture.

  • if you’re sending high wattage through it there’s a real possibility you’re gonna burn some to kind up.

    Anything over 3A or 60W requires the cable to have an e-marker. A little chip inside one of the connectors that indicates what the cable is capable of. No USB certified device should try to pull 60W or more through a cable without e-marker or anything above what the cable can handle if it does have a marker.

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  • open standard.

    Which is why it’s such a mess. The RCS standard is defined by the GSM association, an organization with well over a thousand members. Want to add a feature to RCS? Prepare for years of bureaucracy trying to get the standard amended. Then 750+ mobile operators worldwide need to upgrade their systems, adding at least another few years.

    Meanwhile when Apple wants to add a feature they can just roll it out in the next iOS release.

  • I especially like it when they use airplanes to illustrate weight. “… the same as 15 Boeing 747 jumbo jets”. Airplanes are made to be as light as possible, they go to extreme lengths to save as much weight as they can. As such, a 747 is much lighter than most objects of similar size. People have no intuition of the weight of such large objects to begin with, but then they add to it by using something that is much lighter than you’d expect.

  • Not just internet providers. Data communication speeds have always been in bits per second. Historically it makes perfect sense.

    Specifying speed in bytes per second would be inconvenient because while we settled on 8 bits per byte in the early days of computing this was not the case. 6-bit bytes were common, but other sizes were used too, 7,8, 9, 10 and sometimes even larger.

    So when you’re talking about communication between different types of computers with different size bytes, it would be confusing to use bytes/second as a unit.

  • No contest. 4k with Dolby Vision HDR and Dolby Atmos vs. 576p with stereo sound

    The original is unwatchable.

  • Me, a European, using Xcode and Eclipse ¯(ツ)

  • It was part of my BSc, but that was over 20 years ago.

  • Someone here has an IQ of 20, but it’s not that kid.

  • I wish they did the opposite. Release a €999 PS5 Pro with specs that justify that price.

  • DVDs are still not bad if someone really wants to buy a movie. Cheaper than BluRay and with much weaker DRM. Video is very low quality in today's standards, but bitrate and autio quality is better than any streaming.

    DVD bitrate is only 9.8 Mbit and uses this very inefficiently due to the use of MPEG-2 encoding. When DVD was invented we did not have the processing power in affordable hardware for better codecs. Streaming services can do at least twice that bitrate and with much, much better codecs. Audio quality is similar, streaming services actually have higher bitrate audio than most DVDs (AC-3 at 448 kbit on DVD vs ~770 kbit EAC-3 on streaming). DTS could have higher bitrates (it was either 768 kbit or 1.5Mbit) but only supported 5.1 channels.

  • Counting starts at one, indexing starts at zero.

  • It us solely the company's responsibility to ensure each package is labeled with the correct weight, not the consumer to tolerate excuses like "measuing errors" whether they're valid or not

    The measuring error is on OP’s end, not the manufacturer.

  • Scales used for commercial purposes, such as weighing the amount of product in a package, are regularly calibrated and checked. Messing with the calibration is considered an economic crime and comes with very harsh penalties.

  • The chip in a passport or ID card is not a simple data storage device. It's more like a tiny computer that the reader talks to. This is unlike a simple NDEF tag that you can easily clone, there are several layers of protection.

    First, you need a key to even access the chip. This key is derived from 3 pieces of information on the document: the document number, the date of birth and the date of expiry. The idea is that to get this data, you already have to be looking at the data page of the passport, that is: to access the privacy-sensitive data inside the chip, you already have to be able to look at that same data printed on the page.

    This data then goes into a key derivation function. Some handshake messages are exchanged which I won't bore you with, and both the chip and the reader should at that point be able to derive another key that will then be used to encrypt any communication between chip and reader. There are actually 2 different mechanisms for this, the older BAC mechanism (Basic Access Control) and the newer PACE mechanism (Password Authenticated Connection Establishment). The latter uses newer and even more secure crypto.

    This prevents eavesdropping and ensures you cannot remotely read the document.

    Once the connection has been established, the reader can request certain chunks of data from the document. This includes everything that is printed on the data page, as well as a higher-quality color version of the photo on you document.

    The data that can be read from the document is digitally signed by the government of the issuing country. You can verify this signature against a list of trusted certificates. Only the government that issued the document should have access to the corresponding private key and as such you cannot forge this data (unless you are able to break certain cryptographic standards, but if someone can do that we have bigger problems than fake IDs). This is called 'passive authentication'.

    Now, if you get your hands on someone's passport, you could still copy the data, you can't modify it, but you can clone it. To prevent this passports also have a clone detection mechanism. Again there are multiple versions of this, but the most basic form is called Active Authentication. Part of the data read from the passport, is a public key. The chip in the passport has the corresponding private key, but there is no way to read this key. You can confirm it's not a clone by sending a piece of random data to the passport and asking it to sign that data with its private key. You then use the public key to check the signature and confirm the document is in possession of the corresponding private key. You can also confirm the authenticity of the public key, because that is also signed with the private key of the issuing government.

    Now, theoretically you could try to extract the private key used in clone detection from the physical document, you would need some extremely advanced tech to do this, and the chips in ID documents have all kinds of physical protections against these kind of attacks. Maybe some intelligence services would have this capability, but it would only allow you to clone a document, not forge one.

  • Chip cards wouldn't work online unless we had some sort of reader

    Good news then. We do have a reader. Chances are you are looking at one right now.

    Almost all passports have chips (with the exception of a few developing countries, but even they are starting include them) and a lot of ID cards do as well (most ID cards in Europe already do and new ones are required to have then).

    You might not see them, as they are contactless chips. They can be read by the NFC reader in your phone.

    If you want to try it, search in the App Store or Play Store for an app called “ReadID Me” and test it on your passport.