HNHacker News
TopNewBestAskShowJobs

throwaway5752

11,221 karma · joined December 30, 2013

submissionscomments
throwaway5752··on Amelia Earhart's Reckless Final Flights
1. The Maneuvering Characteristics Augmentation System (MCAS) system existed because the plane was unstable at high angles of attack.

2. The 737 MAX was unstable because Boeing wanted to milk the 737 airframe further than it should have been for financial reasons and oversized engines were mounted forward on the wings.

3. Since the plane was unstable in this way, it would pitch up when climbing. MCAS would detect this through the angle of attack (AoA sensors) and automatically engage, forcing the nose down.

4. When the single, nonredundant AoA sensor failed, MCAS would misinterpret this and try to continuously force the nose down in normal operations. Or more plainly, it would fly the plane into the ground for no reason.

5. This happened at least 3 times. In two cases, it caused crashes, killing everyone - almost 350 men, women, and children - aboard.

6. Boeing strenuously blamed the crew in the first crash, and did not ground the planes.

7. Boeing did not ground the 737 MAXes after the second crash, either. The FAA only grounded the aircraft after much of the rest of the world already had.

As you noted previously, MCAS existed to make the 737 MAX fly like prior versions of the plane. Boeing, in fact, lobbied for this outcome so it would not affect certification or require separate pilot training, which would have cost time and money. So while MCAS was documented, pilots were not required to be trained on the system, because of Boeings efforts.

One cannot put a "don't crash the plane button" on a plane, even if it is well documented. It is particularly disgraceful if the "don't crash the plane" button only exists because the plane's manufacturer added the button to increase their own profits.

I have to admit, you have made me lose my composure here a bit. I thought anyone this knowledgable about flying would not blame pilot error in the 737 MAX crashes. The plane was grounded for almost 2 years, this was arguably the greatest scandal in the production and regulation of commercial aircraft in history. Boeing paid $20 billion in fines and restitution, and pled guilty to criminal charges.

For the benefit of anyone else curious about this, good starting points are

https://en.wikipedia.org/wiki/Boeing_737_MAX_groundings

"hours after the approval for MCAS's redesign was granted, Boeing sought, and the FAA approved, the removal of references to MCAS from Boeing's flight crew operations manual (FCOM)"

"Boeing wanted the FAA to certify the airplane as another version of the long-established 737; this would limit the need for additional training of pilots, a major cost saving for airline customers. During flight tests, however, Boeing discovered that the position and larger size of the engines tended to push up the airplane nose during certain maneuvers. To counter that tendency and ensure fleet commonality with the 737 family, Boeing added MCAS so the MAX would handle similar to earlier 737 versions."

"The MAX was exempted from certain newer safety requirements, saving Boeing billions of dollars in development costs."

https://en.wikipedia.org/wiki/List_of_Boeing_737_MAX_groundi...

https://www.amazon.com/Flying-Blind-Tragedy-Fall-Boeing/dp/0...

throwaway5752··on Amelia Earhart's Reckless Final Flights
I see in a sibling comment that you do not think the MCAS system on the MAX was well designed, and the reliance on a single AoA sensor was not a good decision. I agree.

The aircraft should have never been declared airworthy. There should have been no need for an EAD in the first place. There is no excuse for putting a control system that flies the craft into the ground when there is a failure in a nonredundant sensor on a commercial aircraft.

The high standards required for pilots, like Amelia Earhart, do not obviate the even higher standards for quality and safety from manufacturers.

throwaway5752··on Amelia Earhart's Reckless Final Flights
Surely you know this, but MCAS was a badly designed system that failed in a fatal manner in the event of malfunctioning non-redundant sensor (10s of failure events per year). Boeing knew this, but allowed it kill everyone aboard two flights. Documentation in the instructions or not it had no business being on a commercial aircraft, ever.
throwaway5752··on Curtis Yarvin's Plot Against America
No, his premises were just wrong. He's just blaming others rather than question the foundations of his belief system when they failed to be predictive. He's as simple to analyze as the people he looks down on.

Nothing is worse for a dilettantish ideologue than to have their ideas put into practice and have to face reality with scrutiny.

throwaway5752··on The Blowtorch Theory: A new model for structure formation in the universe
I have to ask. Did you and are you now, using a AI assistant to develop the theory or answer comments here?
throwaway5752··on The Blowtorch Theory: A new model for structure formation in the universe
I generally agree. If I had been ask to review this, I would have pushed very, very hard on whether "cosmological natural selection assumes that universes reproduce via black holes and big bangs" and most of what follows was necessary. Even if it's true I wouldn't have mentioned that Tyler Cowen was solicited for a review. And not having any math, at all, makes me think the author is not committed enough to their own idea to put in the hard work.

It was a very interesting piece, and something to be proud of. So far nobody has figured out the TOE so they are in good company. On the other hand I see no reason for them to believe they are in a position to be as dismissive as they are of existing theory.

throwaway5752··on The Blowtorch Theory: A new model for structure formation in the universe
It strikes me similar to something that is LLM generated. It relies very much on the relationship between words, like how a non-practitioner in a field might develop a fatuous proof or theory.

I'm not saying it is wrong, either. But it's not quantitative and makes weak predictions with very little work into the roadmap to experimentally validate the ideas.

throwaway5752··on The Blowtorch Theory: A new model for structure formation in the universe
"Cosmological natural selection provides an explanation"

This is the biggest reach in your entire essay, that black wholes create new universes. The event horizon is complete cut off from this universe and speculating that generations upon generations of universes are created from black holes is fanciful. Your just shoehorn what is basically a massive anthropic principle onto an interesting cosmology theory unnecessarily.

throwaway5752··on US pauses new student visa interviews as it mulls expanding social media vetting
That sounds clever!

But buying more lottery tickets does in fact improve your odds of winning. So your comparison breaks down because it undercuts your point.

The fact that you have no a priori knowledge of what is a winning ticket is not the case with college admissions. It's actually the complete opposite! You have a great deal of prior knowledge and odds of academic success. So, the lottery is a poor comparison in that regard.

Further, the lottery will always bankrupt you because the tickets have overwhelmingly negative expected value. In the case of education, every single study on it indicates extremely positive outcomes. So in fact, adding more seats and getting more students in college, all else being equal, is likely to have a positive economic outcome. If $1 dollar lottery tickets paid out $3 on average, the more you buy, the richer you would be. So again, the lottery is a poor comparison.

throwaway5752··on US pauses new student visa interviews as it mulls expanding social media vetting
Well, obvious they are widening the pool for top tier talent so you can expert more exceptional minds capable of launching unicorns with a broader talent pool of applicants. This is just basic numeracy and knowledge of statistical distributions.
throwaway5752··on Dilbert creator Scott Adams says he will die soon from same cancer as Joe Biden
"eschews" means "To avoid, shun" (https://www.oed.com/dictionary/eschew_v1?tab=meaning_and_use...)
throwaway5752··on I'm Peter Roberts, immigration attorney, who does work for YC and startups. AMA
Thank you very much for replying and making yourself available for the AMA.
throwaway5752··on I'm Peter Roberts, immigration attorney, who does work for YC and startups. AMA
If you could make any 3 changes - unilaterally and instantly with no consequences - to US immigration policy today, what would they be?
throwaway5752··on Why I'm resigning from the National Science Foundation
Someone with a hacker mindset and domain knowledge might want to understand the subtext of the case, which is more important.

I don't think I'll convince you otherwise, but those interested can read this counterpoint to the Reason link with more background and detail: https://www.democracydocket.com/news-alerts/trump-ally-steph...

throwaway5752··on Why I'm Resigning from the National Science Foundation
You don't describe this like a person that possesses any domain expertise in the subject.

It wasn't a mechanism called the Chevron deference, it was law, as determined by the Supreme Court in "Chevron U.S.A., Inc. v. Natural Resources Defense Council".

The deference was on the part of the courts deferring to executive regulators when there was ambiguity, since the regulators were experts in a given field and the courts were generally legal experts. Not Congress.

That was overturned in Loper Bright Enterprises v. Raimondo.

"non-elected, life-long positioned government employees" so, you mean, federal employees. Nothing about it is "life-long", you made that up. They could quit, change jobs, or be fired.

And "criminals" is false. It applied to civil statutes, not criminal ones. It goes on.

throwaway5752··on Why I'm Resigning from the National Science Foundation
A clusterfuck describes chaos and disorganization. This is just a deliberate attack, it is being executed well. It is just malicious.
throwaway5752··on Why I'm resigning from the National Science Foundation
It's not a clusterfuck. The librarian of congress move was a deliberate hostile attempt attempt by the executive to take control over the legislative branch. Just like AFL vs John Roberts is a hostile attempt to take over the judicial.

It's an concerted attempted authoritarian takeover through bureaucratic methods. When they exhaust this, you'll see them frustrated and declare states of emergencies. The founders wrote about this in the Federalist Papers, people like this have always existed.

throwaway5752··on My new deadline: 20 years to give away virtually all my wealth
Some people will always believe some dumb shit. There is no tragedy, just the regular condition of many people being ignorant.

He also did awful things in the business world when he was younger. He's no saint, either, he is just a normal, messy person. But he's done more for the poorest and neediest people in the world than most countries.

throwaway5752··on My new deadline: 20 years to give away virtually all my wealth
Exactly. Look at the Walton and other families hoarding wealth by abusing tax law and lobbying to make it even worse, and the armies of advisors and attorneys parasitically helping them.

Gates is thousands of times better than most. He and Melinda have done more good for the world than all but a few handfuls of individuals. I've heard estimates his original MSFT stake would be worth over a trillion dollars now.

throwaway5752··on Why Is the Kiwi's Egg So Big?
In summary, they thought it was an evolutionary anachronism, a large egg left over from a larger body size because of assumed relationships with larger ratites like Moas. But subsequent genetic and fossil research challenged that.

The article mentions an emerging view it is about "precocity" - larger and better developed babies, and extra yolk being able to provide nutrition to the baby for longer.

throwaway5752··on FBI arrests Wisconsin judge on charges of obstructing immigrant arrest
"To be fair, he wasn’t a member of the judiciary"

That is an extremely important distinction. Further, there are legitimate actions by the FBI in the cases of real judges and representatives in their public corruption prosecutions (see Kids for Cash). In this case, though, the charges are intended to intimidate. That is exactly what the director's tweet communicated and why it was deleted.

throwaway5752··on FBI arrests judge accused of helping man evade immigration authorities
I think it is reasonable to be prepared and have options to leave when basic civil rights and rule of law are being systematically tested and weakened on behalf of the most powerful individual in the country, who had sworn to uphold them. I would say it is irresponsible to ignore or minimize the magnitude of changes in the US in the past 100 days.

I didn't say to sell all belongings and move. I said to have a way out if it becomes necessary. The FBI is being weaponized against judges, right now, and this without any modern precedent.

throwaway5752··on FBI arrests judge accused of helping man evade immigration authorities
Executive branch arrests of members of judiciary are not to be taken lightly. There are many ways to deal with these situations and this is extraordinarily far from normal. All you can do is diversify your US-based investments and get travel visas while you still can.

If you are tempted to downvote, you could make a better point by finding comparable examples under any other modern president.

throwaway5752··on America's reputation drops across the world
"even though nothing really changed."

I have seen estimates that dissolving USAID has caused 10,000 excess deaths, so far.

They threatened three countries with military invasion.

They placed real punitive tariffs on most of the world besides Russia.

They began abducting legal foreign residents and sending some to a foreign prison camp, and not complying with legal orders to return them.

They are responsible for a surge of detained foreign visitors at the border in prison like conditions, sometimes with limited access to their embassies.

They disavowed NATO, saying Europe would have to be responsible for its own security.

I could go on, but China is in fact a more reliable and a more responsible world actor than the US now.

throwaway5752··on I should have loved biology too
I am sure the author is a fine person, but this is an incredibly self-entitled piece. A number of biologists managed to make it through these classes just fine, and are paid much less for pursuing their passion (and making the breakthroughs the author enjoys reading about while on vacation).

A title like "I wish I had enough attention to get through the boring parts of high school biology, I now find pop biology interesting" may have had less impact, though.

Computer scientists and programmers are very intelligent people who often have grossly unrealistic projections of their competency in other fields, and this is a fine example of the phenomenon.

throwaway5752··on IBM orders US sales to locate near customers, RTO for cloud staff, DEI purge
Posted without further comment: https://en.wikipedia.org/wiki/IBM_and_the_Holocaust
throwaway5752··on Former cybersecurity chief Chris Krebs leaves SentinelOne after executive order
Thank you for the thoughtful reply, and I'm really sorry to hear about your previous country. May we live to see peace in our times.
throwaway5752··on Former cybersecurity chief Chris Krebs leaves SentinelOne after executive order
Considering that you lived in an authoritarian country, what did you find was the most effective way of resisting the worst of it? Was there a free and open democratic process there? Was there a price that the population paid for speaking freely online?

Regardless of what else I do, when I comment, I want people to not feel isolate or only in their views. The administration is working hard to create a climate of fear and intimidation and it is important to resist it in multiple ways.

I agree commenting in isolation is less valuable. Voting, calling representatives, going to town halls, and running for office are all more valuable.

throwaway5752··on Musk's Team Is Building a System to Sell 'Gold Card' Immigrant Visas
Thank goodness for the precedent by this administration regarding the legal rights of visa holders!
throwaway5752··on Former cybersecurity chief Chris Krebs leaves SentinelOne after executive order
This administration is a disgrace to America. This was an individual targeted for retribution solely because he was director of CISA and said the 2020 election was the "most secure in American history".

If the President thinks a crime was committed let him bring it and lose in court. This is un-American chicken shit tin-pot dictator behavior.

← PreviousPage 5 of 34Next →