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Cake day: 2023年6月13日

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  • I will cocede PM is not a unit, but % is at least an honoray unit of measurement based on how it’s used [1].

    Time is weird. A duration has a unit associated with it, seconds, minutes, hours, but an absolute time doesn’t. That is unless we’re using an epoch. I could say today started at 1788652800 seconds if we’re using unix epoch.

    I guess that’s because time is a coordinate system. 2 PM is designating a specific point in that coordinate system. There’s no origin (unless epoch specified), so we can’t have an absolute measurement, so we don’t have units associated with it. PM just feels similar to a unit because it is part of a coordinate system.


  • What’s the argument for having it before the number?

    I actually kind of like it written that way because it follows the standard for other units. It should be quantity and then unit. 50 m. 0°C. 50%. 2:00 PM.

    You yourself recognize that that’s the way we say it, and even write it out long form. 50 dollars.

    Sure, historically, $50 has been the correct way to write it, but language changes. Why not make a change that makes English more consistent?


  • Robert7301201@slrpnk.nettome_irl@lemmy.world•Me_irl
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    2 个月前

    This is something that really infuriates me. You are a machine. You do not have personal preferences. That is reserved for persons.

    I’m pretty sure the change was deliberate, because I didn’t notice the behavior until several months ago. Now it’s prolific. People like anecdotes, so it probably performs better subjectively.




  • Not an RPG, but Cairn actually has this. Your bag items have physics, and there’s a bit of squishing allowed, so you can try to fill holes with items that don’t quite fit. You can also shake the bag to try and get items to settle into gaps. I spent so much time shaking my bag and trying to jam items in the smallest of gaps to squeeze everything together in hopes of fitting one more item. Great game in other aspects as well.


  • If your ISP supports IPv6, then yes, you can use IPv6 to get a publicly reachable address when you would otherwise be unable to due to being behind a CGNAT. If your ISP does not support IPv6, you are out of luck. There are methods to translate between IPv4 and IPv6, but they require a public IPv4 address.

    My friend switched to Starlink recently and was disappointed to find out he can’t host Minecraft servers and such due to CGNAT. Luckily, Starlink does support IPv6, so he was able to host his servers that way. The caveat is that we have to be IPv6 capable to join his server.


  • The first and biggest reason is network effects. If nobody else is using IPv6, then there’s little benefit to switching. Corporations and governments are always resource constrained and there’s not really a business case for switching just because it might be necessary someday. Being that corporations and governments are the ones providing the vast majority of services on the internet, that means there’s not as much reason for switching for end users as well.

    Part of the reason that switching didn’t end up being necessary was that NAT did a really good job of solving the address problem. NAT let you have an internal network behind a single IP address which vastly reduced the amount of public IPs necessary. Even most people in tech probably wouldn’t realize that the concept of public vs internal network didn’t exist back in the day. Everything connected to the Internet had a publically reachable IP. When even that wasn’t enough, they just did it again and had CGNAT, carrier grade NAT. Now you could have multiple households and businesses behind a single IP.

    The final reason is that IPv6 is just different from IPv4. Things like router advertisements and SLAAC require you to learn new things and rethink how you do things. What doesn’t help matters is that until you get everyone switched over to IPv6, you still have to support IPv4 in some way. Dual stack, where you run both IPv4 and IPv6 in parallel, is the most compatible way, but it’s also the most complicated to administrate. There are ways for an IPv6-only network to communicate with IPv4 clients, such as NAT64, but they each have their own caveats. These differences can result in small annoyances to administrators that add up, such as like you mentioned that IPv6 addresses are just not as memorable as IPv4. The natural fix for this is DNS. But like I said, that requires you to rethink your network. DNS goes from being a nice to have to being essential even for small networks.

    Despite all these issues, IPv6 adoption is still marching along. France, India, and Germany have some of the highest rates of IPv6 capable devices, at 83.97%, 78.81%, and 74.30%. (IPv6 Adoption) Globally, we’re sitting around just under 50%. (Google IPv6 Tracker) Some sectors also have higher adoption rates. Mobile carriers are mostly IPv6-only these days. A lot of residential routers also ship with IPv6 enabled.









  • The previous 40kW proposal linked in the article mentions it would allow operation where solar panels aren’t feasible, like permanently shadowed areas where water might be. There’s also the dust problem to solve with solar panels, although this would also be a problem for nuclear reactors since their radiators could become less efficient from dust buildup.

    There’s a lot of extra costs associated with making solar panels space worthy. No atmosphere also means no radiation shielding and no cooling. I actually managed to find satellite solar panels for sale: https://www.cubesatshop.com/product/solar-panels/. They have front and back panels but if we assume they didn’t have a back and all panels faced towards the sun it would be ~120W. That gives us $133/W, which means 100kW would be $13.3 million. Unfortunately the mass isn’t listed, so we can’t estimate the launch costs. I don’t have a way to estimate the cost of a fission nuclear reactor on the moon since we don’t know how it would work yet, so this calculation is mostly for fun. That math would change significantly if we are able to manufacture solar cells from lunar regolith.

    In nuclear’s defense, we’ve been sending plutonium-238 into space since 1961. There’s been a few accidents, but the fuel casing has been improved so that the later accidents resulted in no leakage. That was in the early days, so we know a lot more about safety now. Do you think the risks are too high for any nuclear fuels in space, or does uranium pose unique risks?


  • It was a bad demo. I solved every “puzzle” near instantly except the robot, where I didn’t realize the arm had to be on a specific side. The demo was basically the story prologue and intro tutorial, but then it stops without ever giving you a proper puzzle. It didn’t do a good job of showing depth in its mechanics. Each puzzle has a single correct obvious solution. I wanted to optimise, but that single solution doesn’t give anything to work with. Forget single solution though, most levels are a single part. I get that they’re introducing new parts, but you’re allowed to what you’ve already taught even when introducing new mechanics. The lack of interaction between parts is a large part of what makes it seem so shallow. It makes me question if the dev even knows how they interact.

    I didn’t mind the story at first, but it overstayed its welcome. Your “less is more” is an excellent way of putting it.

    Hopefully the full game will be better, but I’m not counting on it.