I gave my engineering students a CO2 removal design problem once, and at the end, asked why the theoretical efficiency had increased in the time since the textbook was written. The answer was that the concentration of CO2 in the atmosphere was higher.
Yes, in fact they might be useful for chemistry simulation long before they are useful for cryptography. Simulations of quantum systems inherently scale better on quantum hardware.
The video is essentially an argument from the software side (ironically she thinks the hardware side is going pretty well). Even if the hardware wasn't so hard to build or scale, there are surprisingly few problems where quantum algorithms have turned out to be useful.
It is tough to beat classical computers. They work really well, and a huge amount of time (including some of mine) has gone into developing fast algorithms for them to do things they're not naturally fast at, such as quantum chemistry.
What are the actual numbers you think are fantasy? Most of the time when I see someone claiming economic statistics are fake, it's a misunderstanding or lack of context. For instance, people will say the US unemployment rate is fake because it doesn't include people who have given up on looking for work... but the U-4 unemployment metric, published by the Bureau of Labor Statistics alongside the main U-3 metric, does include these people.
Because it is hilariously wrong. You have been operating under the false understanding, for who knows how long, that the media are talking about job postings when they are talking about jobs numbers.
There are some that talk about jobs filled, others are talking about unfilled postings. I guess you can laugh at your hilariously wrong assumption while reading this article.
Many thanks, I was thinking to build something similar and try to predict stock market macro movement.
Typically, right now I am relatively bearish but I feel I am 3-6m too early.
Trend is downward for both hiring and seeker, which I would interpret as employers are hesitant to invest in IT due to current US politic unknowns, typically, the tarifs and actual impacts on economy.
Growing and sequestering enough biomass to slow down climate change means effectively running the fossil fuel industry at the same scale but in reverse. In that spirit, I'll point out that most efficient way of moving carbon-bearing solids per ton-mile is the bulk carrier ships we use for shipping coal.
Lightly-armed Athenians trapped heavily-armed Spartans in hilly terrain, and instead of fighting them in a phalanx, wore them down with a long day of hit-and-run. Hundreds of exhausted Spartans were taken alive, which was a massive scandal for the Spartan reputation at the time.
Plants still perform respiration using oxygen. Photosynthesis lets them create their own sugars, but their process for using those sugars in the mitochondria is similar to how we do it. Plants release more oxygen than they consume because they grow: in order to grow they must pull CO2 from the air, use the C as building material (instead of respiration fuel), and dump the O2.
That analysis is from the perspective of the scammer. The scammer has limited time to write to each victim once the responses come back from the initial mass-email, so the scammer is better off if only the most gullible people reply. From the perspective of the person being attacked, the counterintuitive result based on selection bias goes away, and a more convincing scheme is more of a risk to you personally. (The assumption that scammers have limited time to write to each victim may itself become less true because of LLMs.)
Texas is not going to secede. In the 2020 election, the vote was 52:46 between Trump and Biden, meaning almost half the state supported the overall national winner. Compare this to the actual secession crisis election in 1860, where the vote was 75:24 against the pro-Union candidate, with Lincoln not even on the ballot in the state.
"Third. New States, of convenient size, not exceeding four in number, in addition to said State of Texas, and having sufficient population, may hereafter, by the consent of said State, be formed out of the territory thereof, which shall be entitled to admission under the provisions of the federal constitution. "
(This is Texas trivia for mutual amusement, not a serious suggestion.)
What was annexed and what is now Texas are not the same thing. Some of the area of the original Texas already is part of different states (no other state is a majority of old Texas though)
The method you describe would be an example of what is called a "thermostat" in molecular dynamics (because the speed of molecules forms what we call temperature). Such adjustments to the speed can definitely paper over issues with your energy conservation, but you still have to be careful: if you rescale the speeds naively you get the "flying ice cube" effect where all internal motions of the system cease and it maintains its original energy simply by zooming away at high speed.
Thermostats ensure that the average _kinetic energy_ remains constant (on average or instantaneously depending on how they are implemented). Your parent post wants to enforce the constraint that the total energy remains constant. So its a bit different from a canonical ensemble (NVT) simulation. This is a microcanonical ensemble simulation (NVE). This means you don't know if you should correct the position (controlling the potential energy) or the velocities (controlling the kinetic energy).
Basically, there will be error in the positions and velocities due to the integrator used and you don't know how to patch it up. You have 1 constraint; the total energy should be constant. There are 2(3N-6) degrees of freedom for the positions and velocities (if more than 2 bodies). The extra constraint doesn't help much!
Edit: Also, the only reason thermostats work is because the assumption is that the system is in equilibrium with a heat bath (i.e. bunch of atoms at constant temperature). So there is an entire distribution of velocities that is statistically valid and as long as the velocities of the atoms in the system reflect that, you will on average model the kinetics of the system properly (e.g. things like reaction rates will be right). In gravitational problems there is no heat bath.
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