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Comment Re:If they are thermally efficient enough (Score 1) 46

What I do not quite get in this context is that there are still investors around with the fundamental lack of insight

Well, you know, D-K... they don't know what survivor bias is.

Is this a case of "there is a sucker born every minute"?

They are sure they are smart because they got money, and don't understand that even if they did make an intelligent investment, there was a luck component.

Comment Re:The Ban Wasn't in the Packets (Score 1) 91

PPIN seems to mostly be a server feature. I don't feel like going into BIOS right now but I found this about a PPIN option on a Lenovo server. It shows an AMD processor so it's highly relevant. On my system I don't have /sys/devices/system/cpu/cpu*/topology/ppin and there's nothing about ppin in dmesg, but I don't know if that's because the feature's not enabled, or compiled in, or what.

Comment Re:This comment section is pathetic. (Score 1) 91

Obligatory "Welcome to Slashdot, you must be new here."

This has been going on for literally years.

Anonymous posting is an option for logged in users, not a thing that people can do without logging in, so they know exactly who is doing this. Slashdot has removed accounts before, therefore it is clear that they want this to occur.

Comment Re:it's all about trust (Score 2) 91

Why are you trusting anything?

That's what TPM is fundamentally about. You talked in another post about it being for separation, that's a trust function, so clearly you know it's about trust. That shows that this comment begins disingenuously.

Open Source TPM software and hardware exist, and are under the user's control in a way that any other TPM is not. Not every motherboard has a TPM slot, but boards with them are not hard to come by, so it is feasible for users to have a TPM that they actually do control. Neither the TPM in your CPU nor the average add-in TPM is actually that. Being able to remove things from it is not the same thing as being in control of it, although it's a part of being in control.

Comment Re:TPM Suspicion Intensifies (Score 1) 91

Windows provides 3 distinct ways to clear all TPM data. Your UEFI provides ways to clear TPM data. It is under *YOUR* control.

The "He who can destroy a thing controls it" idea from Dune was about political control, not direct and literal. You can destroy that data at any time, but that's the extent of your control over it. That's not nothing, but it's far from the hardware working for you.

The fact that a root user can't access information al-a-carte is foundational to the feature

Right, that's why the feature is not for my benefit. If I want to bypass security between applications which is not for my benefit (for example to prevent me from copying data that I'm actually intending to copy) and I can't do that because TPM says no, that's working against me.

Having a separate secure enclave is a good idea, having it be so secure that I can't do what I want with it when I want to is a bad one. Most users won't even try, you only need to make it so that they can't trivially be tricked into it. A big warning, a short delay, a hoop to jump through so that a person who can't read the warning can't get there.

Comment Re:Interesting (Score 1) 46

the people who are actually in the business of data centers, AI, and space, think it can be done and can be cost effective

That's what they say.

Do you believe everything people say?

If it turns out that they can do it

They can't, and only people who know how nothing whatsoever works thinks they can.

Comment Re:kids these days ... (Score 1) 91

A like for like CPU change would trigger a windows reactivation, and that was before you even learned to spell TPU.

Not IME. I changed the CPU on this system that I'm using right now back when it still had Windows on it without requiring reactivation. It took changing the motherboard to have to reactivate.

Comment Re:kids these days ... (Score 1) 91

Fun reminder that with an AI agentic framework, pretty much any software can be readily disassembled and this sort of malicious behavior "fixed". Tasks that previously would have taken far too many man-hours to do, well, you can have a bot do it now.

Comment Re:LEDs for thee, not for me (Score 1) 110

, I'm talking about the massive, entirety of the electronics industry, all of which is required to make an LED bulb:

Yes, that's what life cycle assessment (LCA) figures include. It doesn't take 8-20 kWh merely to assemble a LED bulb, that's the energy for everything included.

And that's actually a lot of energy for such a small item. Even incandescents are relatively energy intensive to make for such a small item (glassmaking is energy intensive), and LEDs are 8-13 times as energy intensive to make. Just (A) not 25x as many, and (B) orders of magnitude off of being relevant compared to usage consumption.

Remember that this "every person driving every car" also applies to the usage electricity, which is by far the vast majority of the impact. Generating an extra 1,23 megawatt hours to power 25000 hours of incandescent instead of LED lighting involves massive numbers of people "driving their cars and mining". 1,23 megawatt hours of generation just is not even remotely comparable to the resources that go into manufacturing a small electronic device. Which should be obvious from the price alone.

And pretending that incandescents are made of rainbows while LEDs are made by Satan is just not fair. Incandescent bulbs rely on tungsten. Tungsten is only 50% more common than silver. Extracting tungsten from wolframite or scheelite requires open-pit and/or underground mining, then pressure digestion in hot sodium hydroxide, liquid-liquid extraction with organic solvents, & acid precipitation. Since you're throwing away 20-25 incandescent bulbs for every LED, you're demanding 25 glass envelopes (glass smelting), 25 brass threaded bases (copper mining), and 25 tungsten filaments. The number of components is less but the volume of them is far more. As is the energy required to make them.

As for "waste": a large portion of the world's electricity comes from fossil fuels. 1,23 megawatt hours of electricity leads to a ton of pollution, including things like lead arsenic and mercury, being emitted directly into the environment. Far more than anything you might be concerned about within a LED bulb if you were to outright incinerate the thing in open air and dump all its waste straight into the water. Which is, of course, not what actually happens. And it should be mentioned that that RoHS marking on the bulbs? That requires strict requirements on the maximum amounts of toxic elements that can even exist in the product. We're talking milligram quantities of gallium, indium, phosphorus, etc. It is simply incomparable to the emissions from power generation.

Re, health claims, I can only guess you're talking about blue light impacts on circadian rhythms, and that early LED bulbs tended to be "cold" / "daylight" color spectra, wherein most incandescents are "warm" spectra? But today you can buy fluorescent to literally any spectrum you want, so it's not particularly relevant. Or maybe you're talking about flicker? Again, it was often bad with old bulbs, but completely irrelevant to modern bulbs. If you mean something else, you're going to have to state what you mean.

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