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mgrund

129 karma · joined November 12, 2021

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mgrund··on Tesla Quietly Disconnecting Radar in Customer Cars During Service Visits
It’s not entirely clear what unit the number is in. Checked the manual and it’s a time-based distance to next car measure.
mgrund··on Tesla Quietly Disconnecting Radar in Customer Cars During Service Visits
I actually filed a legal complaint about this. Ultimately the claim was rejected so no law in Denmark to protect against this [1].

Tesla was sentenced to pay me a small compensation ($800) for not getting proper consent for the update, but refuse to do so. I’ll have to take them to court to get it.

[1] https://www.bilklage.dk/CMS/Upload/1/Documents/Anonymiserede... (in Danish)

mgrund··on Update on Sharing
Would feel like less of a money grab if they rolled this out with price reductions, given the increase in subscriptions I assume they expect as a consequence. They might even be able to sell it as a way to bring justice to those that do not share accounts and who are currently covering the cost of other people doing it.
mgrund··on The Disappointment of 5G
Absolutely, this is a central subject of study in Tactile Internet from what I’ve heard; next-gen backhaul/WAN technology. It starts with first hop to support local Tactile Internet networks. Private, ultra low latency 5G LANs are already being used in e.g. some production facilities.
mgrund··on The Disappointment of 5G
> There are virtually no new applications enabled IMO with 5G speeds vs LTE speeds/latency, assuming they are both not congested.

I think 5G latency requirements are currently very academically driven without much practical validation, see e.g. Tactile Internet.

mgrund··on Google leaking 2FA secrets – researchers advise against new account sync feature
If your threat model includes a compromise of Google (or your Google account), sure. You should also probably use a hardware TOTP device in that case. For most people, this is a sufficient level of security. It’s always a trade off between convenience and safety.
mgrund··on Tesla gives update on battery degradation: only 12% after 200k miles
This is only for S and X, which, as far as I know, still use 18650 cells by Panasonic, so this says nothing about Tesla battery tech. The really interesting thing is to see how their cost saving changes, especially the change to non-nickel chemistry, impact battery longevity.
mgrund··on Google has already pulled six products in 2023
My Gameboy still works, my OnHubs are essentially bricked (unless you don’t need access to unimportant features like making changes to the Wi-Fi network settings and add nodes to the mesh network [1])

[1] https://support.google.com/googlenest/answer/11257354?hl=en

mgrund··on Ask HN: Azure startup credits are a bait and switch?
I’m in the founders hub program as well and have been very happy with the generous amount of credits, which I have also used for GPU SKUs (don’t remember the exact SKU).

It’s true that there are some constraints on eligible SKUs, but I have found that usually it’s tied to which region you want to run it in, i.e. subject to (non-preferential) availability. And GPU SKUs are obviously in high demand currently. Consider checking in other regions or even zones if you haven’t already.

My impression is certainly not that they are trying to bait and switch you, but just that the Azure experience can be a bit user hostile sometimes.

mgrund··on Ask HN: Freelancer? Seeking freelancer? (March 2023)
SEEKING WORK | Aarhus, Denmark, EU | Remote preferred

Full stack or product/team leadership part-time freelancing. MSc. in CS, 9 years of industry experience (Uber, Microsoft, self-founded startup).

I bring startup experience and a get-things-done mindset. I have primarily used technologies such as go, react, and azure cloud infrastructure recently, but I have experience with a vast set of technologies (and I am happy to pick up new ones). Besides early-stage startups, I have particular experience with infrastructure, devops, incident management, distributed systems, and cyber security.

mgrund··on PHP bug: Password_verify() always return true with some hash
Could also be a backdoor in combination with another yet-to-be-discovered bug…
mgrund··on Will Tesla Ever “Solve” Full Self Driving? (2022)
As a Tesla owner with a model 3 that used to have radar until Tesla disabled it I find this argument funny.

Radar failed when the front got covered in ice, that's about it. With Tesla Vision (camera only), it no longer has any active sensors so it means it doesn't really work and is generally unavailable (as in, not even cruise control is available) or highly unpredictable in conditions such as:

- Rain - Fog - Snow - Low sun - When using windshield fluid - Sometimes when driving next to a truck (not sure if tunnels are still an issue as well?) - Probably more scenarios I forgot about...

Having tried both setup, it's pretty clear to me that the best real-life results are with multiple sensor technologies. I have very little faith Tesla succeeds as long as they are camera-only.

mgrund··on Using a date-modified header to detect unique visitors without using cookies
True it does not matter if it’s a cookie, or whatever. You need to look to the ePrivacy directive article 5.3 for which exemption case applies. In the case of timestamps, it would be case A :

> when the cookie is used “for the sole purpose of carrying out the transmission of a communication over an electronic communications network” (“Exemption A“)

Since the timestamp is no longer used solely for this purpose, you need consent.

mgrund··on Ask HN: How to deal with burnout and its consequences?
Been through burnout myself (still recovering, takes a long time).

Look for things that bring you joy (and don’t get carried away). If your body says no, it’s probably not a good fit for you right now.

Being in tech likely means you have skills that are valuable in a lot of jobs that can make you a (possibly smaller) salary. Now is a good time to try out something different. I recommend the book Designing Your Work Life with Bill Burnett.

You can also check out my book with advice based on how I moved on: https://www.amazon.com/dp/B0BDM4JXNR

mgrund··on Classic 50mm “Normal” Lens
The “nifty fifty” is certainly not forgotten and absolutely a great buy.
mgrund··on JPEG of Shakespeare is also a zip file containing his complete works (2018)
If you are looking to learn more about these techniques, the field is named steganography: https://en.wikipedia.org/wiki/Steganography.
mgrund··on Tesla’s Dojo Microarchitecture
Given Musks public statements on goals and strategies, I think you should view it more holistically.

With Musk, everything is a step towards the end goal(s), like colonizing Mars (which might even be the only goal since it ties everything together; it’s much easier to send humanoids to prepare for colonization and it’s not like HCI seems at all a priority unlike many other AI efforts).

My guess is that with Tesla, Musk aims to create AGI in a way he can control (as you may recall, he has previously talked about fears of the tech and control is a natural strategy to handle this). The cars are just the step that enables the next, so he basically just invests in the future over short term gains, which is a very reasonable business decision.

Custom silicon is likely unavoidable if you want to lead the AGI field, so he would just be investing in the next step of the plan. Tesla Bot is a good indicator of this direction.

mgrund··on On the Unhappiness of Software Developers (2017)
I’m surprised that reward misalignment is not making the list.

Seems to me like in many places, career success is mostly driven by metrics that are not related to good software engineering practices (specifically showmanship). Normally I would expect success to be measured primarily on metrics closer to the actual professional skillset.

Not arguing for or against, just surprised not to see it in the list.

mgrund··on Show HN: Adless – Consumer-Friendly Monetization with Subscription Networks
I absolutely agree, it is incredibly hard to get money out of consumers pockets.

For this very reason, a lot of bootstrapping efforts go into collaboration with players in niches where consumers do spend money historically, for example the classical news medias.

The "one subscription works everywhere" story in that case is access to a lot of medias all over the world with the same subscription so that the medias increase average visitor revenue and consumers don't have to tie themselves to one or two news sites they might accept to pay for, but instead can browse freely and automatically compensate each content creator as they do so. They basically get to compete on quality, not scale.

The issue with unlocking exclusive stuff is that everybody (even very large players) is struggling to put together enough "stuff" to justify a subscription by itself. This is basically the problem subscription networks solve by making content creators collaborate on adding stuff to the package.

mgrund··on Show HN: Adless – Consumer-Friendly Monetization with Subscription Networks
Hi HN!

  I’m Mathias, the founder of Adless.  
A bit of additional info about Adless:

- Currently it’s just me and I’ve and bootstrapped Adless to this point over the last months.

- It’s not crypto. Adless is about finding a more consumer-friendly solution to the problem of Internet monetization, not experimenting with new technologies. My stance is that implementation details can change later if we find product-market fit and decide that a crypto-based solution offer an overall superior technology for the problem.

- Instead of focusing on privacy-by-technology, the focus is on achieving privacy-by-policy and ultimately privacy-by-business-model.

- I have long wanted to explore this problem because I hate how ads manipulate me (and in particular my child) but I also do not particularly enjoy what stand-alone subscriptions are doing in terms of accessibility of content (+ there is no chance I’m making that many subscriptions). And with concepts like “metaverse” being pushed, I think it is more urgent than ever to explore alternatives to ads (and generally data-dependent revenue models) as the primary way of financing the decentralized Internet.

- The typical subscription sales channel will be via content creator partners websites, so you will not find a strong consumer-focused sales channel directly on adless.net, although you can obviously subscribe from there.

mgrund··on Dependency injection in Go with Uber-go/fx
Full disclaimer: Uber employee using fx daily as well as in hobby projects. Post reflect my personal opinion and is not related to Uber.

It really does work really well in practice:

- It pretty simple and lightweight so it’s blazingly fast even though it happens at runtime (in contrast to e.g. the Java DI frameworks I’ve seen)

- The module concept is extremely powerful to make modules that plug in with zero effort

- Modules have a lot of autonomy (unlike wire, as I understand it - I have no personal experience with it), like being able to do things at various stages of the application lifecycle (startup, shutdown hooks), collaboratively populate dependency groups (e.g. implementing handlers or middlewares independently and injecting them separately using the grouping mechanism), optional dependencies

Once you have a nice standard library of common modules (this is really crucial for it to work well IMO), it’s a huge speedup to make a high-quality service. My biggest issue with it is that it doesn’t match structs with interfaces, so you effectively end up depending on structs/pointers or returning interfaces.

mgrund··on HTTP/3: Everything you need to know about the next-generation web protocol
Absolutely not a coincident that Google is proposing a protocol that allows protocol level user tracking. By making the session ticket server-initiated and not client-controlled all control is also stripped from the user.
mgrund··on A UX designer walks into a Tesla Bar
Absolutely terrible UX (and bugs) after the new update. A few additional annoyances:

- When holding the steering wheel in the 10 and 2 position, my right hand covers the HUD and lane change camera

- Rear cam now has significant lag and stutters, so you never know if you are actually about to hit something (no, I don’t think it’s caused by the cable issue in the recall, came with v11)

- The infamous temperature control pop up covers the cam and HUD as well

mgrund··on Buy a coal mine, drive a gas guzzler, and other uses of reverse logic
It’s a good lesson in the importance of picking the right things to measure/optimize for. Queue length is not a good thing to optimize for by itself.
mgrund··on Mercedes Wins Race Against Tesla for Level 3 Autonomy Approval
The lane change quote is to describe a level 2 system by contrast, which implies this system can do lane change.

Full quote: “Right now every other car claiming to have advanced autonomous features is currently only at Level 2 at the most, which means the car can stop steer and brake in certain conditions, but it can’t perform lane changes indecently and the driver can’t remove his hands from the wheel for extended periods.”

But yes, speed limit reduces usefulness to congested traffic situations as also noted in the article.

mgrund··on AWS outage shows the internet relies too much on Amazon
There’s always more you can do to drive up availability but it comes at a cost and at some point the cost exceeds the prevented losses. There’s also no real brand damage from being down when everybody else is also down due to a common and widely accepted dependency (“nobody got fired for buying IBM”). So given the SLAs offered by cloud providers like AWS it really is the most economically feasible solution.
mgrund··on Are 14 people really looking at that product? (2020)
I would expect that it contributes to sales both by creating a fake sense of validation from others and by creating a fake sense of urgency (get it while in stock!), both of which are good tools to compromise decision making of the buyer.
mgrund··on Scattered thoughts on why I waste my own time
I have even found that just changing my phone to grayscale helps a lot and it’s an easy thing to do. I use a shortcut to toggle it so I can easily enable colors when I need them.
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