Catch up on stories from the past week (and beyond) at the Slashdot story archive

 



Forgot your password?
typodupeerror

Comment A reminder to prioritise asteroid defence/space (Score 1) 15

There's often a "we should fix problems on earth before looking to space" theme. We can be as equal, progressive and fair as we like and an asteroid still wouldn't give a damn and wipe us out anyway. Should we survive asteroid attacks, the sun will expand and burn the planet dry anyway.

We have to do both. Defence of the Earth (dramatic phrase, but see subject above...) has to be studied, funded and run. Along side that a long, probably multigenerationally long, programme of "how do we survive when the Earth is uninhabitable" including the ability to leave Earth and live elsewhere. These programmes are fundamental to long term survival of the human race.

I think one of the problems is that it all sounds very dramatic, big and sci-fi. But it isn't - we have direct evidence that the risk already materialised once and wiped out most life. We also have evidence of the expansion of the sun. All these things are certain, so we have to look at them as reality and not fiction.

Comment Re:Kids (Score 1) 165

> I wonder if someone with my "punish disobedience" attitude
> just wouldn't succeed as a teacher, these days.

Yeah, the problem is the school administration doesn't believe in it, so they undermine you. For example, if you send a misbehaving kid to the office for discipline, they'll generally be given candy or other treats. Yes, really. Every time. Which means every kid who has ever been sent to the office for bad behavior, is going to misbehave again and again, hoping to achieve similar results.

And you *absolutely* cannot punish them yourself; that would end your teaching career.

No, I'm not making any of this up. My sister is an elementary school teacher.

Comment Re:Twice as much electricity? (Score 1) 169

Honestly, at this point I think their population is closer to three times ours; though it's impossible to be precise at all, because death statistics are as illegal to report in mainland China, as any other politically sensitive thing.

We know for certain that their birth rate has been lower than one-child-per-woman and falling for the last couple of decades (and given their demographics -- most of the population being well past child bearing age for a woman -- this definitely implies that the population of domestically-born Chinese people has been shrinking), and we also know for sure that an abnormally large number of deaths went unreported or grossly under-reported in 2020, 2021, and 2022. (We've got satellite images of the backlog stacked up outside of crematoria for months at a time, and needless to say there's nothing in the official stats to correspond to that.) As for immigrants, expats have been leaving China like rats off a sinking ship for the last half decade or so. Estimates of the current population vary wildly; I've seen figures as low as half a billion, and as high as 1.5 billion; but realistically, I think on the one hand it's clear that there's been a significant decline, and on the other hand it's also clear that China is still significantly more densely populated than America. On the whole, I estimate that their population is about three times ours, give or take. And continuing to decline.

Whether this decline is altogether a bad thing (for China, I mean), is another topic for another day.

Comment Re:China may or may not has overtaken (Score 1) 169

I don't know about the count of solar panels, but I don't need to, because it's a side issue.

Fundamentally, the article is abusing purchasing power parity, when talking about the size of the entire economy, to make it sound like China's economy is actually comparable to America's. That's *incredibly* intellectually dishonest. Purchasing power parity GDP is only meaningful, at all, when you're looking at per-capita numbers, because in that context it is a proxy for average standard of living. (Even then, _median_ income, adjusted for purchasing power parity, is a much better proxy than GDP PPP, especially in countries with a stupidly extreme wealth gap, like China.) When you're talking about the total size of an economy, as a proxy for the resources and economic power that it can bring to bear, purchasing power is entirely irrelevant, and bringing it up is absolute proof that the writer either does not understand economics at all, or else is deliberately attempting to deceive the reader. Or both.

The article is absolutely propaganda, and furthermore it's _stupid_ propaganda that no educated person should fall for.

Comment Re:Is there such a thing? (Score 1) 94

Yes, there are, but it's becoming less common now.

We were *told* back in the early 2000s, when USB was still horribly unreliable, that computers with "legacy" ports (PS/2, RS232 serial, and parallel) were going to be a thing of the past "very soon". At the time, it didn't happen. A couple of large manufacturers released a couple of models each with no legacy ports (e.g., Compaq with its iPaq line, and let me just remark on what an early-2000s product name that is), and then then due to popular demand they introduced variants that did have the legacy ports, and the whole thing blew over and everything went back to normal. A few years later, a lot of models started shipping without parallel ports (presumably because they genuinely are physically large to an annoying extent), and in some cases without serial ports as well, but the PS/2 ports mostly remained, for another next twenty years or so. And then they too started to decline (rather suddenly, since the pandemic, though I think that's probably a coincidence of timing), and at this point it's difficult to buy a new PC that has PS/2 ports, but that's a fairly recent phenomenon, and it's still *possible* to get them (new, I mean), it's just no longer the norm, it and becomes more uncommon with every passing year now. Another MS Windows version or two from now, it may not be possible any longer. Which would be unfortunate, because then it wouldn't be possible to plug an XT keyboard in using an XT-to-PS/2 adapter, either, and that would be a shame, because XT keyboards are awesome. I suppose someone might devise a USB hub that has PS/2 ports, but it would probably require drivers and so would likely not work until the OS is loaded, I expect, which for a keyboard would be an unfortunate limitation. Ah, well. On the plus side, it would be hot-pluggable, so there's that. It did always annoy me that PS/2 wasn't (reliably) hot-pluggable.

Now we're being told that USB A ports are going to be a thing of the past, and I anticipate an even more protracted phase-out period for that, because the port has been in use for so long, and is so convenient, that it has became a rather important de facto standard, to the point where even non-computer-related things often support it (as the most common and standardized source of low-voltage DC power), so you have it on things like desk fans and wall-outlet adapters. I don't see it going away in a short amount of time.

Comment Re:What am I getting for $5K? (Score 1) 105

Because there are eight billion people on this rock. The words "smart" and "bed" both exist, so of *course* somebody made a "smart bed", and of *course* there were people who bought the silly thing. Presumably there are also internet-connected toothbrushes, can openers, pencils, cutlery, and socks. Why wouldn't there be?

Are these *popular* products that *lots* of people own or want? Well, no, but that's an entirely different question.

Comment Re:Given the economics, it might not help much (Score 2) 66

> No one who is just getting by is going to do it out of the the kindness
> of their heart for the environment.

Almost no one, in that demographic, yeah. And I think that demographic
(just getting by) is going to include the overwhelming majority of ride-share
drivers, because it doesn't pay well enough to raise someone out of that
demographic, and it's not really a highly regarded "dream" profession that
a person with other means of support would do because they think it's
important (like teaching school or medical work) or just plain love doing
it and don't want to do anything else (like art or music), at least not for
most people.

The price gap between traditionally powered vehicles and electric ones
is narrowing, but it's narrowing fairly gradually, and I don't know that it'll
necessarily be down to zero by 2030 (for the new vehicle market), and
if you want drivers of older used vehicles to all be using electric by 2030,
the deadline for that price gap to narrow to zero is more like 2010, and
that ship has sailed.

With that said, superficially, a $4k subsidy is substantial enough that it
might *sound* like a real windfall to some people, and fear of missing
out on that deal (especially if it's advertised with a prominent and
imminent expiration date) might potentially motivate some people to
try to stretch for it. Dunno.

(Presumably there will be car dealers who will go out of their way to
provide financing that allows people to overextend and buy a more
expensive car than they can really afford, with a loan term so long
they won't be able to afford the maintenance on the car by the time
it's paid off. It's a sleazy practice, but it would neither be new, nor
unique to EVs.)

Comment Re:What am I getting for $5K? (Score 2) 105

Meh. Hästens mattresses start at around €10k, and their base model is about as comfortable as good run-of-the-mill mattresses (under €1000), and doesn't do anything other than being a mattress. Yet people are happy to pay €20k and up for these things, even if they have issues like getting hard and lumpy if you don't regularly "massage" them.

Comment Re:so it wasn't really encrypted (Score 2) 67

Not really. Photographers might be swapping SD cards in their cameras all the time, and leave the ones not in use lying about, in a camera bag, coat pocket, or whatever. They are small and easy to lose, so encrypting them at least ensures that whoever finds your card can't get at the images. You might even want the manufacturer to have a copy of the key; in this application the convenience for data recovery in case of damaged hardware outweighs the small risk imposed by such a back door. Maybe it makes less sense on a camera mounted on a vehicle, but still.

Comment Re:Not cheap enough yet (Score 1) 264

Another issue is the lack of affordable public charging. Especially here in Europe with our sky high petrol excise, an EV might be a bit more expensive to purchase but a lot cheaper to run than an IC car. If you can charge at home, that is. Charging at a public charger can be twice as expensive, and if you're forced to use a fast charger it's even more. That changes the economics of EVs rather a lot.

Comment Modern Gaming (Score 2) 51

blends '80s console aesthetics with modern gaming conveniences

I hope that doesn't mean the modern game system experience.
80s console: Turn on, 5 seconds later the game is ready to play.
Modern gaming conveniences: Turn on, wait 30 minutes for the console to patch, then another 30 while the game pulls in a 1 GB update.

Comment Re:Barrel Jacks (Score 2) 123

But I do wonder what will happen to all of the new barrel connectors that are 0.2MM difference in diameter or length for various "reasons".

The EIAJ standard barrel jacks (usually yellow tipped) are designed to fit only in the corresponding size socket and in none of the other sizes. Each size is for a specific voltage range, the different plugs are supposed to save you from accidentally over-volting your devices.

Slashdot Top Deals

DEC diagnostics would run on a dead whale. -- Mel Ferentz

Working...