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Joined 2 years ago
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Cake day: July 9th, 2023

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  • Signing (intermediate) certs have been compromised before. That means a bad actor can issue fake certs that are validated up to your root ca certs

    While you can invalidate that signing cert, without useful and ubiquitous revocation lists, there’s nothing you can do to propagate that.

    A compromised signing certs, effectively means invalidating the ca cert, to limit the damage




  • Oh ok. I have no idea what the situation here is for bidirectional charging. It’s not common yet.

    And yes, we’re trying to work out common payment systems, but as far as I know, that’s just software. Historically chargers required you to register and pay through the manufacturers app, but that’s unscalable when you have many possible charger manufacturers supporting a common standard.

    One of the requirements for US incentives to build out chargers was mandating credit card readers so anyone can drive up and charge without a proprietary app. Of course that was cancelled in our chaotic political situation, so will take more years to happen


  • I believe EVs are being harmonized, although separately….or is that what you meant?

    Don’t EVs in EU have a standardized charger and negotiate voltage and current?

    In the US, we have an old standard that needs to go away, a newer standard that is going away, and Tesla’s standard which seems to be on the way to the winning standard. But the handshake is already compatible: switching between systems just requires a physical adapter. I believe the car and charger negotiate for the best voltage and current it can use

    And of course level I and II charging use residential electrical standards, so already must be as standard as you can get. No one wants to try resolving those











  • I really don’t think they do take up a lot more power but more how quickly they’re being built. At least in the US, power usage has been effectively flat, with datacenters and other growing power needs balanced with increasing efficiency…… but a lot of people want a lot of new datacenters at once

    And the growth of power usage for ai data centers isn’t really all that high except that we’re structured for zero power growth. This really seems like the other side of the same issue we’ve been having with renewables: no infrastructure investment. We’ve been building effectively zero transmission lines for a couple decades. That equally means we have trouble bringing renewables online and we have trouble powering a data center that pops up. There’s every chance we already have plenty of power for the new datacenters but can’t get it there


  • Maybe part of the answer is to not be so strictly against it. AI is starting to be used in a variety of tools and not all your criticisms are valid for all of them. Being able to see where it is useful and maybe you even find it desirable helps explain that you’re not against the technology per se.

    For example Zoom has an ai tool that can generate meeting summaries. It’s pretty accurate with discussions although sometimes gets confused about who said what. That ai likely used much less power, might not have been trained on copyrighted content


  • While I understand new data enters for ai are increasing power usage, it’s just highlighting the existing problems where there are decades of insufficient investment in infrastructure.

    You can’t get enough power to run a new data center? Where were you when I complained we needed additional transmission lines to keep bringing more renewable energy online? Where were you when I wanted the huge infrastructure project to import huge amounts of Canadian hydro? I bet you wish you had that now.


  • Looking back ten years I used a different set of tools for a different set of programming languages for different purposes. This has been a general pattern as the industry has evolved over my career.

    Yes I have a good depth and breadth of knowledge that would help me pick things up but I’m not sure relearning the technology would be different from learning a new one, and all the frustrations of old tech would be there.

    As an example, I’d have to relearn the ins and outs of virtual machines and would be damn frustrated to lose the benefits of containers. All that fiddling around with networks, and being tied to specific component brands to get scalable performance. Having to relearn something like puppet or ansible or chef to build out the machines instead of a straightforward dockerfile. And the frustration of how slow it all is and not being able to run anywhere