It seems exceptionally weird that people have started writing as though "AI"'s needs are just axiomatic; and that the size of other things, like revenue or suckers with available capital, must be the problem.

The fact that you want something that costs more than you have isn't normally described as a 'funding gap'; it's just you having expensive tastes that you can't afford. Why are talking about there being X trillion in 'demand' when, in fact, there's only X trillion in unfunded hype because nobody has slapped a shock collar on Altman yet?

McKinsey is already involved. It's not really a classic Saudi project if it doesn't combine the dodgiest western white collar people and services money can buy with a healthy dollop of slave labor.

It looks weirdly like some sort of baby transport accessory. Maybe perfect for iphone air users hoping that a warm, soothing, environment conducive to frequent suckling will help their purchase recover developmentally normal weight?

OMG, I'm so stealing that ;)

"Woke" simply means "I'm conservative, and the thing I'm calling 'Woke' is something that I hate". It has no well-defined meaning beyond that. I've heard things as diverse as "the concept of the Metaverse" and "removing copyrighted content so you don't get sued" described as "woke".

No call by push value or P vs NP or complexity theory etc.

So a different set of things that are also useless to the vast majority of people?

Even when Chrome adds support, we'll have to wait ages before we can actually reliably use the format without having to implement fallback logic and fallback formats for legacy browsers.

AVIF is also painfully slow. And if I recall correctly, is outperformed by JPEG XL at moderate and low compression (but - again, if I recall correctly - AVIF wins at highly compressed images). Also, AVIF faces some patent threats. And misses a lot of JPEG XL's interesting features.

A practical issue with a circle is that it is not a circle until it is finished,

That's not the reason at all, AFAIK. The reasoning is, okay, we want people to be able to move from one place to some distance place in the city at the maximum comfortable speed, which is limited by G-forces. You have some guaranteed G-forces from first accelerating and then decelerating. But if it's linear, that's your only G forces. If it's curved, however, you also have radial G-forces.

The Line's train going from one end to the other (170km) nonstop is supposed to do it in 20 minutes, aka with a mean speed of ~510 kph. Let's say a peak of 800 kph. Now if we shape that 170km into a circle, that's 54km diameter, 27km radius. From the centripetal force formula a=v^2/r, that's 222,22...^2 / 27000 ~= 1,83 m/s^2, or a constant ~0,2g to the side. This is on top of the G-forces from your acceleration and deceleration. You can probably deal with ~0,2g in a train if everyone is seated without much discomfort, though it's double what's acceptable for standing passengers. But you can eliminate that if the city is linear (at the cost of increasing the mean distance that the average person has to travel to go from one arbitrary point in the city to another)

That's not to defend this concept. Because the city doesn't need to be 170km long; you can just made it more 2d and have the distances be vastly shorter (at the cost of just needing some extra lateral travel within the city). Honestly, if I were building a "designer" city from the ground up, I'd use a PRT (Personal Rapid Transit) system rather than trying to make it super-elongated.

What got me is that I don't see why this isn't readily resolved by active damping, the same systems that many tall towers now use to resist earthquakes or resonant wind forces. Big heavy weight at the top (or in this case the bottom) hooked up to actuators that make it move in an inverse direction to the sway.

Again, this is not to defend this colossal waste of money. I just don't see why there aren't ready solutions for this specific problem.

Agreed - but that said, there are space elevator alternatives, like the Lofstrom Loop / Launch Loop, which at least theoretically can be built with modern materials (and have far better properties anyway - not latitude-constrained, provides dV, vastly higher throughput, far more efficient, stores energy / can add cheap energy at off-peak times, etc). One could always "waste" money on them trying something new :)

Even when you try to keep the implementation fairly practical just deciding that there should be a city somewhere without any historical logic for the presence of a city is a strategy with a pretty dubious success rate. Doesn't fail every time; but unless you get lucky and manage to find an attractive chunk of real estate that was missing nothing but critical mass; or you have a very specific purpose in mind like 'new administrative center without restive urban population' that allows you to just tell the civil service to live there unless they like 8 hour commutes and declare victory your odds aren't good.

In this case the Saudis started with that downer; picked a particularly grim environment, likely to get at least a couple of degrees grimmer in the comparatively near future, and treated aggressive deviations from practicality as a virtue. There's probably something they could have done to doom the plan harder; but I'm not sure offhand what it would have been.

Barring pretty exciting advances in biotech(along with either the psychology or...less wholesome methods...of keeping people on-task when they learn that their 4-century lifespan will be dedicated to a period of drifting through nothing and a life sentence studying the surfaces of Kuiper belt objects inside a tiny habitube or something) you are going to hit a line where (human) exploration is not going to be readily separable from human colonization; just because shipping times become prohibitive: Anywhere on earth you can just pack some extra canned goods and a few spare parts and be there and back in under a decade even with age of sail era tech; even faster now unless the obstacle is political objections by people who already live there, in which case it's 'espionage' more than 'exploration'. Hasn't really been a notable case of 'exploration inextricably linked to colonization' since humans crossed the Bering straight into the Americas, with some weaker alternatives from the colonial period where it almost certainly wouldn't have been as cost-effective; but would have been theoretically feasible.

Near-earth objects are mostly in the same board. Shipping cost are higher, so presumably lunar mining overseers will receive less frequent breaks than offshore drill rig workers; but the moon is only 3-ish days away. As you move further away the numbers get less favorable; though they still remain within the realm of "there were people circumnavigating the earth in that time, even before we knew how scurvy worked" or at least "modest chunk of your expected working life"; and it may well be relevant that a lot of the more distant objects are either gas giants that you would only ever observe rather than land on, or very small solid bodies that you could potentially just have a robot slap an ion drive on and bring back for your perusal.

Ultimately, it seems like it boils down to an irrational emotional position. Some people, don't know why, just look at a situation and are all "the most fulfilling outcome possible would be making this the next generation's problem!" Leads to enough bad calls earthside; I assume there will be some particularly grim outcomes in more hostile environments.

We already have to cook our resumes for screening bots. There's going to be a lot more stupid automated systems crappily built on this shit we have to manipulate our output to please, and it will suck.

It's not going to get any easier to find definitely bot slop free software as time goes on; but we can be fairly sure about this stuff. Like hunting for low background steel.