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Why is space 2 dimensional?
  • The original question was why solar systems and galaxies are in planes, and your explanation is wrong.

    What do you even mean by similar orbits? Most orbits are circular for a totally different reason, and that is tidal interactions.

  • Why is space 2 dimensional?
  • I hate to be that guy, but this is wrong.

    The solar system is mostly in one plane because it formed from a cloud of gas. The cloud of a gas has some total non zero rotation and as the cloud collapses interactions flatten the cloud into a disk, where all of the planets formed.

    This same principle applies to galaxies.

  • Is overwatch 2 really that bad?
  • I honestly though I would get used to it, like the forced 2-2-2 comps which I initially disliked, but I never did. It just made the game feel like too much more like a pure fps. And it not feeling like that was what made it unique.

    In my experience all the que times were fine as 2-2-2 even when queued as duo dps

  • Is overwatch 2 really that bad?
  • Ehh I disagree, I played consistently ow1 for years and ow2 just wasn't as good.

    I mainly missed tank synergies. Without it the game just wasn't the same. The other tank changes were just insane too. And I preferred the full 6v6 experience.

    Then they had to go an monetize the shit out of it, when I already paid for the game! The last straw was either paying for new characters or grinding like hell.

  • EV sales are growing. So why are automakers getting cold feet?
  • Well let me clarify a bit why I think they are the worst.

    They have the full complexity an an ICE car, with the added difficulties that arise in a full EV

    You need to build and design a car that has all of the downsides of ICE cars. Complicated engine, emissions management, fuel, air intakes.

    With a lot of the downsides of an ev. Large heavy, expensive batteries.

    Meanwhile you get limited upsides. Evs get lower maintenance and transport costs and ICE cars get range.

    Plug in hybrids will have harder maintenance than either, while not getting the fully reduced transport costs as it's not as efficient as a full ev.

    Here's where traditional hybrids win out, their battery can be really small, correspondingly cheap and more efficient.

    Lugging all that extra weight around decreases the efficiency of the vehicle, where for full ev that matters a lot.

    When running in full gas mode your lugging around a heavy battery for nothing, and in a full ev mode your lugging around a heavy engine for nothing.

    The High-medium range of full gas would be better served by a traditional hybrid, and the low-medium range would be better served for full evs.

    I'm sure there is a narrow window for plug in hybrids, but again that is going to be rare and shrinking as evs get better.

    While you can't fix stupid, we do have to think about how a product actually gets used vs it's design.

    If nobody is plugging their plug in hybrid, then maybe the manufacturer should remind them, even if its only outlet level power.

    To me it is also a symbol of overconsumption. Buying a vehicle that will cover 100% of your use cases vs buying for 99% and renting a more suitable option for that 1%.

    I do think this argument for me would change if manufacturers took a different approach. If they took something like a traditional hybrid, like a Ford fusion, and stuck a modern battery in and added a simple plug would be great. Then increase the efficiency a bit and maybe someone could get 10 miles of battery from a regular outlet.

  • EV sales are growing. So why are automakers getting cold feet?
  • Honestly plug in hybrids are the worst of both worlds.

    There was a study recently from Europe that found the vast majority of people with plug in hybrids hardly every plugged them in, and drove them like normal cars. That defeats the entire point of a plug in hybrid, and now you are carrying a heavy battery everywhere that you are not fully using. Which makes the car less efficient than a normal hybrid!

  • [article] What to do about America’s killer cars
  • Try thinking about the math a little differently. Instead using a by mile approach I get a similar result.

    1. Average American drives 15,000 miles/year
    2. Over 60 years, that's 900,000 miles total
    3. Using a death rate of 1.33 per 100 million miles:
    4. So for 900,000 miles: (1.33 / 100,000,000) * 900,000 = 0.01197
    5. Convert to percentage: 0.01197 * 100 = 1.197%
    6. 1/75 is about 1.3% which is not far from my guess.
  • What is the best value, out of the box PC gaming solution?
  • Imo your best bet is to see if you can find someone else's used gaming computer.

    Roughly ~400$ gets you pretty far for hardware 3-5 years old

    The energy efficiency will be much worse, so depending on how much you use it you may want to account for that and get slightly newer.

    In my personal experience look start in amd's Am4 platform, as it's quite upgradable up to a 5800x3d.

    But to start something like a 2700x or 3700x are solid cpus.

    Equivalent Intel cpus are an option too.

    As for gpus look for 1000s series nvidia 1070-1080 and onwards. Less than might be too weak.

    Similar for amd. Vega 56/64, 5700xt etc.

    Huh the 1080ti came out 7 years ago, so I was a bit off.

  • Americans misunderstand their contribution to deteriorating environment
  • Too be fair, it is not the choice of individual Americans to live in and be dependent on a society that was forced to become car centric and dependent.

    With very few options to travel by car, and the large dominance of single family homes, we don't get many options.

    Fuck people who drive gas guzzling trucks and giant suvs though. That is just unnecessary. But again car manufacturers have been slowly convincing Americans to purchase larger more expensive suvs for obvious reasons.

    This issue is absolutely a governmental policy choice, and one that is continuing to be upheld.

  • Startup Says It'll Use Huge Space Mirror to Sell Sunlight During Nighttime
  • While it would be cool for it to appear the size of the moon, it is not necessary with a shaped mirror.

    You can keep the same size in a higher orbit, maybe even geosynchronous, then sync the rotation of the mirror to keep it pointing in the same spot on earth.

    Granted a shaped mirror that size would be much harder to put into orbit than a flat mirror.

  • Startup Says It'll Use Huge Space Mirror to Sell Sunlight During Nighttime
  • It's certainly a stupid idea if your trying to illuminate at the suns level, but if you wanted an area to have permanent moonlight? Not so unreasonable.

    The moon is 400,000 times dimmer, so 1km^2 of mirror, which is ridiculous, could illuminate an area the size of Germany.

    New York metro area is 12,000km^2, which would only need a mirror 173m on each side.

    Actually might not be a bad tourist attraction for a crazy city, permanent artificial moonlight.

  • Why are doctors so hands off and unhelpful in the USA?
  • I've only tangentially heard about this, but another issue is that doctors in the US don't have to, and aren't encouraged to keep up with recent research.

    Combine that with a medical education system that hasn't changed drastically in 70 years to keep up with that new research and most US doctors are just out of date.

  • Batteries start to rival gas on California’s electricity grid
  • Grid storage wouldn't be lithium ion, something like lithium phosphate would be better.

    Step one, buy in bulk to get a price closer to $150/kwh

    Step 2, use for much longer than 2000 cycles, lfp have much longer expected lifetimes, and since space/weight aren't a huger consideration, you can replace individual cells when they go bad.

    Step 3, produce your own energy, if you have your own energy generation, you don't need to pay grid prices, and profit is much better.

    Disclaimer, I am not an expert in this at all, but this is how I imagine it could make sense.

  • Intel’s Troubles Complicate U.S. Chip Independence
  • They've had fab problems for years, in that it cost them a ton on money and much longer than desired to shrink nodes, so they've fallen from a leader in fab production to being behind.

    Not to mention there's not much money to be made from fabs, unless your tsmc.

    AMD, Qualcomm, Nvidia, Google, Apple, are all huge tech companies that design their own cutting edge chips, and only Samsung is another company that both designs and produces chips.

  • So now that season 4 has been out a bit, what are your thoughts?

    I have noticed that its much more difficult when you get a lot of the new mobs.

    The corrupter is a pain to fight on uneven terrain, which is most caves.

    The septic spitter creates painful hazards, but is at least easy to identify and kill.

    I've seen the stingtail down so many people by moving them out of position repeatedly, so I've found i need to protect teamates it's targeting.

    I love the jet boots, especially as gunner, but even as scout its useful. I just wish I'd see them more.

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    magiccupcake @lemmy.world
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