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Joined 1 year ago
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Cake day: June 23rd, 2023

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  • Tesla Model Y owner here (never again, either). I hate the touchscreen, and also hate the way they’ve shoehorned functionality into the button/scroller controls on the steering wheel to try to address complaints.

    When I first got the MY, the only way to control things like the wipers was through menus in the touchscreen. A software update introduced the ability to control them from the steering wheel controls, but even that “solution” sucks. You have to press & hold the control down while simultaneously scrolling it with your thumb. And most times you can’t scroll it from all the way off to all the way on in a single motion, so you press, scroll as much as you can, release & press again then scroll the rest of the way. A real PITA.




  • The problem is computer vision has a LONG way to go before it’s truly on par with human eyesight. Musk loves to crow how cameras are sufficient since we use our eyes to drive.

    The thing is, eyes have special neural circuits that detect motion. They essentially filter out unnecessary information and send just the motion details to the brain. This prevents the brain from being overloaded with every detail the eye constantly sees.

    And being overloaded with everything is exactly what computer vision currently does. It’s just a stream of images that the computer must analyze completely. So it’s working exactly opposite to how the eye & brain works.



  • ANI and CallerID serve two very different purposes. Suppose you managed the telephones for something like an insurance company, where you have lots of customers calling in, but also have lots of employees calling out. You want the Caller ID on your customers phones to show the main # for your company whenever you call them, so it would show something like 1-212-555-1000.

    Because the company has a lot of employees, it has 100 individual phone lines, so 100 agents can be on calls at the same time. The phone company actually allocates 100 numbers in that case, and those numbers could be very different than the above -1000 number. So the numbers 1-212-555-7000 through 1-212-555-7099 all belong to the company. Each time an employee makes a call their telephone system finds any one of those numbers between -7000 and -7099 that isnt in use and uses it. The call is billed to that specific number, and the bills for all 100 lines are combined & billed to the company at the end of the month.

    If the company couldn’t configure its phones to display 1-212-555-1000 as the Caller ID then customers would see random numbers in the range of -7000 to -7099 any time the company called them.



  • I recall when I bought my first hybrid that the dealer said there were something like 15 different computers controlling things, from the ICE engine to the transmission to the charging of the battery, etc. They weren’t networked together.

    I also once ran afoul of a software bug in the ECU of a Honda CR/V. That’s the embedded system that manages the whole operation of the engine - from fuel injection to timing to emissions etc. As they progress through model years they use different ECUs that require different software. Even though I work in IT, I wouldn’t feel comfortable trying to update it myself, given the different models, firmware revisions, etc. I was more than happy to take that car to a dealer to have them confirm my car had buggy software and to upgrade it to the right new version.






  • My employer had an EV cert for years on our primary domain. The C-suites, etc. thought it was important. Then one of our engineers who focuses on SEO demonstrated how the EV cert slowed down page loads enough that search engines like Google might take notice. Apparently EV certs trigger an additional lookup by the browser to confirm the extended validity.

    Once the powers-that-be understood that the EV cert wasn’t offering any additional usefulness, and might be impacting our SEO performance (however small) they had us get rid of it and use a good old OV cert instead.




  • Port 22 is the default SSH port and it receives a TON of malicious traffic any time it’s open to the whole internet. 20 years ago I saw a newly installed server with a weak root password get infected by an IP address in China less than an hour after being connected to the open internet.

    With all the bots out there these days it would probably take a lot less time if we ran the same experiment again.




  • Depends on the content. My employers sites are a good mix of images, static, and dynamic content, and we rely heavily on Akamai. Their caching of our images offloads a huge amount of work from our origins. We also use their Image Manager tool to optimize a lot of the images seamlessly, which adds further optimization. Their WAF and other security tools are also very impressive.