Efficiency is based on differences in energy that are economically accessible, not on some rambling theories in a newline-free paragraph.

You can access room temperature. You can' economically access the blackness of outer space from the earth's surface. Likewise, you can access the negative terminal on your battery, but not some static charge in the upper atmosphere.

You pump X amount of energy into a heat engine, it expels that energy to an accessible exhaust, and typically 70 to 95 percent of that energy is *not* converted to work. You pump X amount of energy into a battery, it dumps that energy through a motor to its negative terminal, and only 5 to 10 percent of that energy is not converted to work. That's the only way to practically analyze the situation.

We could also all have infinite free energy if we could access the levels below the zero point energy in the quantum fields. One little problem: that's not accessible either.

You needed a handbook for that?

Anyone who ever went to a business meeting could've told you that.

By my experience, it takes only 4 things to make a meeting productive: a) someone is in charge of the meeting and moderation, b) that someone had time to prepare, c) everyone in the meeting has received an agenda with enough lead time to have read it and (if necessary) prepare their part, at least a bit and finally d) there is at least a simple protocol of the meeting for those who couldn't attend, those who dozed off in the middle, and those who claim next week that something else was agreed on.

For the example in TFS of 200F water and assuming room temperature exhaust, Mr. Carnot says that the max possible efficiency is less than 20%. Any real world engine, including this one, probably ends up at a low-to-mid single digit percent efficiency. IOW, the vast majority of the heat would still be wasted.

The operator of the facility generating the waste heat might get more energy savings at lower cost by tweaking their processes to be a few percent more efficient in the first place, instead of trying to recover this low-grade energy source with an elaborate engine and plumbing.

Once you import numpy, Python has arrays.

seriously, slashdot? It's 2025 and you still can't do the Euro sign?

Even so the prices are excessive. If I want to upgrade the SSD in the current MBP from 512 GB to 2 TB that's +750 â

Meanwhile, a Western Digital Red SN700 with 2 TB I can get for a bit over 200 â.
A Samsung 990 PRO 2 - 245 â (was just rated the best M.2 SSD on the market by Tom's Hardware).

Whatever exact chips Apple is using, they're not 3x as expensive as other high-quality SSDs.

Even if "locked in place" is your underlying assumption, anyone who's even heard of the real world from their mom who has a friend whose father once visited it should know that there is no rule without exceptions and even if that is perfectly true, a small number of those particles will not be locked in perfectly.

That would never fly. You just know that some dufus at the gym would bring a 10kg steel dumbbell into the MRI room and ruin things for everyone.

They tried, but quarreling parent groups couldn't agree on whether to teach the kids that they were coding with 3 registers or 259 registers.

I think that many of those people were also recent DOS users. Given that DOS systems would often simply freeze up several times per day and require a reboot (easy to do since any bug in the user's application could do this), once they added a protected mode pseudo-kernel to Windows (maybe starting with Windows/386 2.1), it was actually a slight improvement over what they were used to since DOS crashes could sometimes be isolated to one virtual terminal.

Because for the past 30 or so years, it has worked very well for MS to keep their main products barely useable, rely on lock-in and chase the next big thing so they can get their dirty hands on it early and lock more people into more products.

That is exactly wrong. Beta versions are there to find bugs. If nobody complained about them, they won't be found. So if you try beta versions, please DO complain about bugs.

I guess "vibe-something" is going to be the anti-word of 2026. People are slowly waking up to what it actually means to let the AI do the work.

I'm not dissing AI, I'm using it extensively myself and there's a few AI whitepapers with my name on them. But like any tool, it can be great when used correctly and ruin your day when not.

That doesn't mean what they do is automatically legal.

I'm pretty sure there's a demand for "murder my husband", or for "can someone please drown my neighbour". And yet it's illegal to offer such services.

Also: Voters. Smokers are still a fairly substantial fraction of the population, enough to swing a vote, especially if, and that appears to be the trend in most western democracies these days, there are two opposing political sides roughly evenly matched.

I mean, does it not strike anyone as a very weird coincidence that we have almost perfect 50/50 splits in so many countries?