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explaininjs

1,838 karma · joined January 31, 2023

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explaininjs··on Webb and Hubble confirm Universe's expansion rate
How remarkably unsatisfactory.

The argument being:

You can't propose physics ever changed, that'd mean energy could have been created at some point!

Energy was created at some point, wouldn't it be nice to know when?

Everything created at the Big Bang exactly as it is now, stop asking questions.

explaininjs··on Webb and Hubble confirm Universe's expansion rate
It's really not. If there is nonzero energy, and our current models don't allow for energy to be created, either we need new models that do allow for energy to be created (time-variant physics, for instance), or we need the existing models to propose a way it was initialized. Without that there's a gaping hole in the model the size of all of the energy in the universe.

Certainly you can't 1) have a model where energy is constant 2) believe there is nonzero energy in the universe and 3) dismiss any model where energy can change as bogus out of hand because you believe it should be constant, without counter-proposing how it even got here.

explaininjs··on Webb and Hubble confirm Universe's expansion rate
Yes, an external reference clock is needed.

If a computer chugs along doing { counter++; } at 1 clock cycle per clock cycle for 13.7 billion clock cycles, it will think 13.7 billion clock cycles have passed when counter is 13.7 billion.

On the other hand, if a computer chugs along at one clock cycle per clock cycle for 1 clock cycle, and reads &counter and sees 13.7 billion, it will think 13.7 billion clock cycles have passed.

Either way it's perfectly capable of introspecting it's source code and logically stepping back until the memory location was 0 to see how many clock cycles would have been required to reach it's current state, but that sort of reasoning is completely devoid of meaning without both perfect knowledge of what the true start state was, and a guarantee that no external influences have occurred.

Here in reality, we know neither the our start state nor our isolation level, but the hubris of many is too string to not at least try finding some logical step-back functions and iterating them until they don't know how to go any further, then proudly proclaiming that "The Start". (after all - how could it not be The Start, look, I can iterate the inverse of my step-backward function from then to now and it matches! QED!)

explaininjs··on Webb and Hubble confirm Universe's expansion rate
Modern physics is guided by those observations, they can't be then used as an argument for its veracity.

Let's say I walk into a room and observe someone writing a tally mark on a chalk board once every second. I count 4x10^17 tally marks. I might assume that 4x10^17 seconds ago that same person entered the room and started tallying. I might even observe for the next 4x10^17 seconds they continue to tally. Heck I might even see a recorder going that when I play back at what I assume to be 1x speed, has chalk scratches at regular intervals for 4x10^17 seconds. I still don't have any actual evidence that they started those 8x10^17 seconds ago.

explaininjs··on Webb and Hubble confirm Universe's expansion rate
Do you think the current amount of energy in the universe is 0? If not, how was it created?
explaininjs··on Webb and Hubble confirm Universe's expansion rate
> Of course, all the results have error bars.

Not to mention the underlying philosophical assumptions, such that the "rate of time" has been constant across all of... time.

Aka: How do we know a "year" 13 Billion "years" ago bears any resemblance to one now? What would it mean for it not to?

explaininjs··on Voyager 1 spacecraft is talking nonsense. Its friends on Earth are worried
What are the radio waves you think have stopped on Earth?
explaininjs··on European Commission's use of Microsoft 365 infringes data protection law for EU
The risk of not being compatible with XYZ Word/Excel/Powerpoint feature is too great. Do you really want your employees to not be able to open the client's document because you cheaped out on your productivity suite? Or, conversely, your prospective customer to not be able to open your proposal because of the same?

Alternatives did exist, who remembers Lotus Notes, Word Perfect, Open Office, Apple Pages, ..., but to use them today would be akin to deploying a new fangled AI web app as a Flash application.

explaininjs··on U.S. seeks to revive idled shipyards with help of Japan, South Korea
Environmental ones, perhaps? https://www.youtube.com/watch?v=335yX5kj7is
explaininjs··on How to convert Node.js stream callback functions into an Async Iterator
Firefox is the only browser that implements it. For all the others you need this sort of machinery:

  async function* AsAsyncIterable<T>(
    readable: ReadableStream<T>,
  ): AsyncIterable<T> {
    const reader = readable.getReader()
    try {
      while (true) {
        const { done, value } = await reader.read()
        if (done) return
        yield value
      }
    } finally {
      reader.releaseLock()
    }
  }
explaininjs··on Toyota to invest $1.3B in Kentucky factory to build battery packs and new EV
Not really, the transmission can be made much simpler and more robust.
explaininjs··on Toyota to invest $1.3B in Kentucky factory to build battery packs and new EV
Ha, I read that as Tesla and it's still true. Almost like there's more to a car than range and charing speed.
explaininjs··on Toyota to invest $1.3B in Kentucky factory to build battery packs and new EV
Why are we restricting ourselves to Rav4's? Toyota sells well over 2 million EV's per year, far more than all Teslas.

And yes, HEV's are EV's the same way BEV's are.

https://www.statista.com/statistics/1181404/alternative-sale...

explaininjs··on Toyota to invest $1.3B in Kentucky factory to build battery packs and new EV
The fact that they already sell the most popular electric vehicle in the US and Japan, and have done so since they launched the very beginning of electric vehicles, over 25 years ago? (Pruis)
explaininjs··on Toyota to invest $1.3B in Kentucky factory to build battery packs and new EV
Parent stated they drive a Prius, which is not the "standard EV" that article mentions. They slate 24mpg, which is laughable: that's around what my old gas guzzling V8 got, and they call it the norm? The Prius gets high 40's easily. But it's a EV fluff piece published by "the EV company", one can't expect scientific integrity.

In fact, reading through the lines of Tesla's own fluff piece, in places like China the Prius is net-environmentally positive even year by year as compared to the Model 3. China has the most emissions of any country, so that's a pretty big caveat to simply ignore. But again, fluff piece by the fluff company.

explaininjs··on The underground world of hobby tunneling
I'm sure you know much more about natural rates of mineral deposition and erosion and the potential effects of altering them than a literal industry professional with decades of experience.
explaininjs··on The underground world of hobby tunneling
Not just illegal, the potential impact on a waterbed is huge. I spoke at length with a BLM hydrologist about this, artificial deepening of discrete hot spring pools can and has caused entire areas to wash out into a uniform warm muck.
explaininjs··on JetBrains' unremovable AI assistant meets irresistible outcry
Microsoft’s (VS Code) solution is actually better: don’t want any AI? Don’t opt in to installing optional extension that uses AI.

And, if you want AI but only using local models, all the same UI API’s are available to you. (modulo some know-how)

explaininjs··on A Partisan Solution to Partisan Gerrymandering: The Define–Combine Procedure
The real problem is the “gerrymandering” of state boundaries and the Senate. CA has around 10 million non-Democrat voters who have had zero representation in the Senate since 1992. In fact the entire West Coast hasn’t had any non-Democrat senatorial representation since 2009.

This is why states like the Stare of Jefferson need to be allowed to exist.

explaininjs··on 'Stupid,' 'shameful:' Tech workers on Y Combinator CEO Garry Tan's rant
While on one hand I agree that getting this worked up over speech is weird, Gary is a (not so) unique case in that when he is able to incite the Twitter activist mob mentality on his side, against other people’s speech, he will happily do so with no hesitation whatsoever.

A while back somebody put up some stickers with his face on an octopus and the tentacles holding his various assets. The Twitter mafia went all out saying this was clearly racist and totally unacceptable in civil society, because of some prior art where an asian individual was offensively caricaturized atop an octopus. I tired to point out that the octopus has been used as a symbol of a many faceted organization since forever, and the racist aspect of the prior art wasn’t the octopus but rather the ridiculous caricaturization. The picture of Gary used in his octopus was a totally normal photo, so the racist prior art was of no consequence. Gary somehow saw my comment and decided to launch a tweet thread telling his hundreds of thousands of followers what a terrible racist horrible idiotic person I am, which resulted in a huge hacking campaign being launched against various little personal projects I had posted on my Twitter.

Ugh.

I don’t use Twitter anymore.

explaininjs··on Covid Test Data Breach: 1.3M Patient Records Exposed Online
Easy enough to have control over never listening to the ruler’s vaccinations/lockdown/quarantine/distancing/masking demands again.
explaininjs··on Covid Test Data Breach: 1.3M Patient Records Exposed Online
1. Consider the pandemic response an international hysteria specifically engineered by the global elite to move as much real value up the socioeconomic ladder as possible.

2. Don’t consider the Dutch to be any different.

3. Bingo. The Dutch fit into the diatribe.

I don’t understand why you think this would somehow be difficult to contend with.

explaininjs··on ICJ orders Israel to prevent genocide in Gaza, stops short of ordering ceasefire
But Israel is far more likely to want conflict to occur. Evidence of such desire would take the form of ignoring intel from international community stating that an attack was planned, and allowing human-sized slow moving targets to pass through the air defense systems unassailed.
explaininjs··on ICJ orders Israel to prevent genocide in Gaza, stops short of ordering ceasefire
I don’t love Trump, but there’s no denying there was far less war, and especially US-funded war, when he was in office. Ukraine-Russia massively escalated as soon as someone in the pocket of the military industrial complex got put in power, as Putin knew it would, and Israel followed suit soon after.
explaininjs··on We made an animated movie in 8kB
Who’s to say we’re living in the corrected branch? Commit fae12 doesn’t benefit from a patch being applied to its great grand parent and the history since then being rebased off of that.
explaininjs··on All arabica coffee is genetically similar: how can beans taste so different?
Do a blind taste test of the fruits and ask the same question. The answers may surprise you - humans are shockingly bad at blind identification of common foods.
explaininjs··on U.S. moves to increase minimum legal size of commercial lobster
For much of history lobsters were considered "sea bugs" and reserved for the poorest of the poor to eat, much as one might treat a cockroach. The idea that they are valuable is a rather recent invention.
explaininjs··on Apple Vision Pro Weighs Almost as Much as a 12.9-Inch iPad Pro
What a useless measure. For the civilized among us, that's 0.00000026 olympic sized swimming pools.
explaininjs··on The case for single-stair multifamily
Living in boston with a broken leg certainly made me very proficient in the {carry crutches while hobbling up and down countless staircases using only the railing to lift my entire body up and down with one arm} waddle.

Anyone with anything more debilitating should steer clear.

explaininjs··on The case for single-stair multifamily
Which cities? Why 25?
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