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Comment Re:If they can't figure out EV (Score 1) 104

Meanwhile BYD are installing 1500kW chargers in Europe,

Grid capacity. And that includes the local utilities equipment needed to supply the chargers. We had a 12 station Tesla charger installed in a local supermarket parking lot. Once the Tesla equipment went in, the site remained fenced off for 6 months. Reason? No transformers available. And when one was finally delivered, it was rated at 1500 kW. For all 12 chargers.

We have had a couple of charging sites go in where the utility power available was insufficient. And the owners just went with diesel gensets. Conveniently hiding the equipment behind fences to to assuage the green sensibilities of the customers.

Comment Re:If they can't figure out EV (Score 2) 104

Not really. EVs appeal to a different market. You have to be able to afford the time to charge one*. Which means your time probably isn't worth much. Sure, I have to slop $100 worth of dinosaur juice in my car. But that's dirt cheap compared to the additional charging time an EV would take.

*Seattle, for one, completely blew the EV economics out of the water when they modified building codes to allow zero parking residential construcion. No more overnight charging. And the traffic cones and old lawn chairs are going in to reserve on-street parking. Gun battles soon if you move one.

Comment Why schools need to change given tech changes (Score 1) 41

Princeton alumnus here (undergrad, staff, grad, and later for a time townie and tigernet user). I agree things need to change -- and using AI as a tutor is a great option for some situations (even as doing that prevents the strengthening of human communities through human interactions).

A couple essays I wrote on that, the first from 2007 focusing mostly on K-12:
https://patapata.sourceforge.n...
"Ultimately, educational technology's greatest value is in supporting "learning on demand" based on interest or need which is at the opposite end of the spectrum compared to "learning just in case" based on someone else's demand. Compulsory schools don't usually traffic in "learning on demand", for the most part leaving that kind of activity to libraries or museums or the home or business or the "real world". In order for compulsory schools to make use of the best of educational technology and what is has to offer, schools themselves must change. ...
        So, there is more to the story of technology than it failing in schools. Modern information and manufacturing technology itself is giving compulsory schools a failing grade. Compulsory schools do not pass in the information age. They are no longer needed. What remains is just to watch this all play out, and hopefully guide the collapse of compulsory schooling so that the fewest people get hurt in the process. ..."

And a Princeton-specific one from 2008 (and revised later):
"Post-Scarcity Princeton, or, Reading between the lines of PAW for prospective Princeton students, or, the Health Risks of Heart Disease"
https://pdfernhout.net/reading...
        "Wikipedia. GNU/Linux. WordNet. Google. These things were not on the visible horizon to most of us even as little as twenty years ago. Now they have remade huge aspects of how we live. Are these free-to-the-user informational products and services all there is to be on the internet or are they the tip of a metaphorical iceberg of free stuff and free services that is heading our way? Or even, via projects like the RepRap 3D printer under development, are free physical objects someday heading into our homes? If a "post-scarcity" iceberg is coming, are our older scarcity-oriented social institutions prepared to survive it? Or like the Titanic, will these social institutions sink once the full force of the iceberg contacts them? And will they start taking on water even if just dinged by little chunks of sea ice like the cheap $100 laptops that are ahead of the main iceberg? Or, generalizing on Mayeroff's theme, will people have the courage to discover and create new meanings for old institutions they care about as a continuing process? ...
        When I think back on someone like, say Shinobu "Dink" Asano of the PU psychology department staff related to undergraduate students, I can imagine no finer or more caring a person. Her presence made my life better at PU, both as an undergraduate and also when I was a graduate student. We still chatted a few times and she read one of my grad school papers I gave her ("The Self-Replicating Garden"). She pointed out correctly how alienated it sounded, and that was something I really had not noticed or thought much on (although she used more compassionate words, of course). I hadn't know until just now on using Google that she and her husband had spent time in Japanese-American internment camps in the USA during WWII... [Although I think on this over a year later and think now she did mention that her husband did not like reunions because of putting up the walls but I did not think much on it at the time, as many will not think much on the points here at the time?] That obviously has implications both in seeing alienation first-hand and also seeing the limits of walled gardens (as opposed to, say, networked ones). I made improvements to that idea later in both those ways. Here is a two-author paper (my wife and me) on people networking to build self-replicating gardens. ... And this includes a mention of the value of networks of space habitats; see the section on Island Biogeography. ... So if my other work or this essay help some people someday, thank Dink.
        Which leads me to reflect on something. I am sure she tried her very best to make the PU psychology department a humane place, and I have fond memories of her. Nonetheless, what Gatto suggests applies to K-12 (school mainly as social control, not education), I suggest applies equally well to college as it is currently constructed as an institution. And it applies even more so to graduate school, which is becoming more and more a perceived requirement of any sort of professional career in the USA. [See the book "Disciplined Minds" on that.] I suggest it applies no matter how many nice people there are at PU, as long as its mythology for both undergraduate and graduate education revolves around scarcity, and related themes of elitism (alienation), competition (destructiveness), and excellence (perfectionism). I suggest it applies no matter how prettily you architect a place in faux Cambridge-style ..., I suggest an internment camp is in some sense an internment camp even if it looks like a country club like the "Village" in the Prisoner series, if it tries to discipline minds and break wills ... and even if it extends across the planet in various ways. ....

Comment Cheat sheets (Score 4, Insightful) 41

The best protection against cheating is to test for application of knowledge, not for knowledge. Give them an LLM. Give them Wikipedia. Give them all the resources they'll have in the wild, then judge the output on quality. This does enormously increase the difficulty of grading and make it somewhat more subjective, but that's the tradeoff and it's necessary.

The second best protection is to allow students to prepare an index card ahead of time and put whatever they want on it. It really works for getting them to focus on the test, to remember material, and to spend time, effort and thought on it.

Comment Re:No clue (Score 1) 65

I'm told there's research to determine if time stops inside black holes.

Or perhaps it runs backward, relative to the universe you just left behind.

it would suggest that time and gravity are in fact linked - the more gravity, the slower time moves.

Yes. Already verified experimentally.

Keep going with that, and you start to wonder if at the outer edges of the universe,

There are conjectures that every universe (and there are many) is the interior of a black hole. And that physical properties (like time, for example) are discontinuous at the event horizon. Both looking in and from the inside, looking out.

where matter has spewed into it.

Time, for a traveler heading toward an event horizon, appear to slow down to observers sitting back a ways, watching. So, to the traveller, time in the universe left behind would accelerate. Their trip would seem normal, but the universe they see in their rear view mirror would die due to entropy/heat death and cease to exist as they crossed the horizon. The arrow of time would reduce to zero as they actually reached the horizon*. But once inside (if they survive) the observation would have to be considered relative to the flow of time inside. They might stop accelerating toward the hypothesized singularity at the center and begin decellerating as they travelled into the new universe. Consisting of a distributed but lumpy centerless mass with no singularity. Just as our universe is.

*Particles for whom there is no arrow of time in our universe are called photons. So, passing the event horizon probably involves a matter to energy conversion. Probably not survivable, IMO.

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