skysight-inc/HackerNews huggingface dataset:
Batteries have a much lower specific energy that hydrocarbon fuels to start with, and then that fact that the aircraft weight does not decrease over the duration of the flight is one more disadvantage (currently a second-order issue, given the first difference.)

These are constraints that can be designed around, and you have more freedom to do so when designing from scratch, but doing so is not a optimization, it is a straightforward trade-off between weight and duration. There's no optimal hump on that line.
Looks like you should have a good look at DigitalOcean to run your personal side projects or fun stuff, which has a much more simpler and transparent billing model (capped, no nasty hidden cost).

I've been a long time DO customer and overall happy for the past 7 years. I've write my personal experience [1] with DO in another post.

[1]: https://news.ycombinator.com/item?id=23016669
I’d like to know what Rentec does. Or whether Rentec even does HFT?
Wanted: Arch Nemesis
> You're also forgetting that what they're selling has no real competition

Europe is the world's second biggest car market after China. Volkswagen Group and the Renault-Nissan-Mitsubishi alliance have both sold more BEVs than Tesla in Europe so far this year:

https://twitter.com/auto_schmidt/status/1250880399137529864

Across the course of the next year or two Hyundai Group will also start to sell more BEVs in Europe than Tesla does.

So far in 2020, the Audi e-tron has sold 3 times more in Europe than the Model S and Model X combined and it has also outsold both models globally:

https://ev-sales.blogspot.com/2020/04/europe-march-2020.html

The coronavirus pandemic is going to put a dent in everyone's sales for a few years but BEV production will continue to ramp up. None of this is surprising. They're big car companies and they sell a lot of cars. The same pattern will play out in all markets eventually.
It is weird how you are insistent on focusing in on how comorbidities impact COVID patients but ignore the same comorbidity issues for flu patients. Also not all comorbidities are created equal. I can understand the original argument if everyone dying of COVID-19 had stage 4 lung cancer, but there are people dying with chronic conditions like asthma that traditionally have little impact on life expectancy.

Also the 0.3% number you are referencing is being questioned as other serology studies have shown it to be 2x-3x higher. The reality of the situation is that we don't know the exact fatality rate of COVID-19. What we do know is that it is at least a few times more deadly than the flu and potentially an order of magnitude more deadly. We also know that the coronavirus is much more infectious than the flu. Like previously mentioned, we have already passed the worst flu numbers even while most of us are under a stay at home order. It seems like no matter how you look at the data, the only way in which COVID-19 is not worse than the flu is how it impact the very young. COVID is more deadly in basically every other way. I honestly don't see what people gain from continuing to downplay this disease in relation to the flu.
Show HN: Samespaces Always On Video for remote teams (samespaces.co)
Hmm... I've seen claims that a 10% install rate is phenomenal when it comes to getting users to install your app, with 1-2% more typical.

Do you have data that shows otherwise?
I remember a story about Chuck Yeager. He was put in command of an Air Force base during the Korean War. He noticed the pilots were putting in sloppy landings.

So one day, he got the pilots together, went out to the runway, painted two strips crossways and demanded that all pilots touch down within the stripes. There was a bunch of whining about it from the pilots that it was unfair and impossible.

So Yeager fired up a jet, took off, circled the field, and landed precisely in the center between the lines. He got no more guff from the pilots and they straightened up.

Me, if I was in a combat squadron I'd choose to serve under Yeager rather than a commander that tolerated sloppy flying skills. Sloppy skills will get you killed in aviation and especially combat.
Troubleshooting CPU Spike in a Major Trading Application
Interesting observation regarding analogy to cytokine storm! Agree with your commentary and hoping this ends asap! Well said.
Or better yet, eternal terminal. That way you can keep your scrollback

https://eternalterminal.dev/
I guess he was referring to the fact that though the people may be great, their published content in that one paper need not be so.
More infectious, sure? But more lethal? Why?
Why the 'we' if 'we' aren't going to do it, but I am?

I've had one interesting/productive 6 month engagement with a team where there were some of these comments, but sometimes... someone would actually just make the change in the branch. It saved time, let them get things "the way they wanted" and was generally agreeable to most on the team.

Someone making a change in 'my' branch wasn't an affront - it was a degree of collaboration. It was almost always preceded with a message of "hey, I see a small issue here - I'm gonna throw a small patch on it - let me call you after to discuss" or followed up with "hey - fyi - I saw a small bug and did a small patch/test - do you have a few minutes to talk at 3 about it?"

And... I would do the same with them, when warranted. It cut down on the delays and let people "take ownership". In the 'wrong hands', I'm sure it could get politically ugly, but no more so than a lot of passive-aggressive comments and blocking/nitpick stuff that holds things up unnecessarily.

One thing that was expected (and made it easier) was that whenever you did that (formal or informal review) you were expected to have pulled the code, installed/run the tests locally, run the code, and verified tests ran before you pushed anything back. A note saying "this doesn't seem right" carries different weight from someone giving it a 2 minute glance vs someone who's actually run that code and seen what you've seen. Yes, I know that often you can spot issues without running the code, but... not always (or, if you see the totality of the code in-situ, vs just diffs, you have more context).
Just like whole Linux, *BSD, Windows network stack, all these drivers for embedded systems... smh
I though it was FreeHand. Maybe someday
Asking a question makes the reader find the answer, and thus understand it, and the reasons for it.

Also, sometimes the answer won't be the one you'd expected.
From what I gather a false positive for an antigen rtPCR is essentially impossible. The primers are extremely specific and can't find something that isn't there.

A false positive for an antibody test is unlikely to take up hospital resources. They admit people to the hospital for symptoms like dyspnea/hypoxia. Not because the patient tested positive on either the antibody or antigen test. The danger in a false positive for an antibody test IgG or IgM, means gives the patient a false sense of security that they've already gotten the virus and are thus immune in the short to medium future.
Metrafin – Open verified identity for developers and internet services
The positive externalities is not a bad point. Where I'm having trouble is, it seems that if we wouldn't pass a law ordering people to not drive around in normal times, then it feels wrong to point to it as a positive when it's induced by people not being able to do anything.

That being said, I think it does make sense to account for positive externalities. Can you think of others that are lockdown-specific? The classic ones right now are pollution.

> Or look at one of the following sections "General vaccination on the decline". This is a wonderful example of the only looking at negatives.

I'm not sure if that is a great example of only looking at the negatives. This is one dimension where the effects of the lockdown are basically exclusively negative as opposed to being a mixed bag. So this feels like something that absolutely _should_ be mentioned. Particularly when factoring in the irony of it increasing mortality from other non-COVID-19 infectious diseases.

> Imagine that flu vaccination dropped 90% and that flu cases dropped 99%, this thing would report that as a negative because, "hey, look at how many people aren't getting vaccinated".

I don't think this is at all fair either, but I must admit I chuckled a bit. It is a funny thought.

> And then when actually looking at it, it's full of pleas to emotion and claims without any data backing them. Take "Addiction and Overdose", there's no real data discussed (other than historical data about deaths unrelated to lockdowns or distancing or economy). Is there no data that supports the implication (if not outright claim) that lockdown will increase the cost or deaths from addiction/overdose? For anyone reading this, if it feels like it's a good, thorough examination you should absolutely discount any points like this where there's no supporting evidence presented.

So, this is the biggest hole that I personally see in my argument, so I very much agree here. The trouble I ran into is, this is such an unprecedented situation that it would have felt ridiculous if I just started making up mortality predictions. So it felt like a good balance to highlight the _potential_ for increased mortality. I do think that means I likely need to soften the language around lockdown causing more mortality to accentuate the fact that it's merely _likely_ that it does.

--

Is there anything else you can think of? Thanks for the feedback.
If you thought programmers were 'scientific and logical' you'd be dead wrong. I used to think that too but after years of experience and seeing so many cargo cult, gut feeling, lazy opinions, bad optimizing just within programming itself, you realize that as a group we are quite prone to emotional argument, lack of discipline and general laziness with argument or research on a topic.
Ther are plenty of free datasets out there. You can get upward of 10 yrs of daily OHLC stock data on yahoo finance. The amazing thing is yf has S&P 500 index since 1927. Free!

Quandl has many free, or low cost stock market/commodity datasets.

I'm not sure what you mean by a "simulator". One of the greatest challenge applying RL to stock mkt is precisely that the market itself is not a MDP.
I still trust HN content more than other sites. The average age here is probably a decade older than Reddit, and people here value rationality, even if we sometimes fail to exhibit it.
FWIW, I will probably circle back here and switch to "I", since I think it's probably worth it to avoid confusion.
I’m in a similar situation and am still getting messages from FAANG recruiters. I think you would be fine.
If it's he-said/she-said between officials from NY state and the White House Coronavirus Task Force, I don't see any reason to automatically side with the White House except for political bias. This White House has proven itself to be mendacious, incompetent, and disorganized many times over.

None of that excuses NY from doing due diligence, but I'm just saying I wouldn't jump to conclusions about who told whom what.
I only just noticed this reply - many apologies.

Yes, that's the one! Our fix was explicitly deleting the copy constructor. In essence a one-liner for us, but you can't see the iceberg of an issue beneath the surface.

Thanks once again. :)
Same here. I guess this is the ethos of Agile? Start somewhere and iterate on requirements/edge cases as they're needed/arise?

Though I kind of hate this approach. As when you begin with just 10% and keep tacking on things for edge cases, you tend to get a crummier solution in the end than you otherwise would have. But that's why refactoring is a thing right? Oh wait, management is against that because they don't acknowledge technical debt...

Let me just slip this in here: https://www.youtube.com/watch?v=P4VBqTViEx4
Local IP Leak SOLVED:

Chrome (and maybe other browsers, too) no longer share local IP address. They share the mDNS address instead, which is often generated and registered locally by the browser. It's used only if the peers are on the same network. Else, it's useless but it used to be provided to all peers and malicious websites and they stopped doing that (speaking for those browsers that support mDNS)

Public IP Leak in VPN SOLVED:

In Chromium version 48+, you can set webRTCIPHandlingPolicy to default_public_interface_only which means that any VPN proxy will carry WebRTC media (over UPD if it supports UDP or else over TCP, which impacts quality of transmission)

Your VPN provider just has to provide a Chrome extension to do the above or advise you to do that yourself. That way, the VPN's proxy IP address is what's visible to STUN, not the user's public IP address.

There is also a more elaborate way around it, but the above should work.
> the second year

The disservice to the students was done by all their prior teachers who'd make such conditions and never enforce them, and they didn't believe my dad would, either. What was he supposed to say, this time I really really mean it? (He did say that.)

I've heard innumerable such conditions from teachers, none of them ever followed through except EE91 lab.
But if the Republican approach is a regressive tax (eg the big tax cut favouring the big end of town) then shouldn’t CA/NY also receive similar treatment?
That’s essentially the discrepancy going on here.
Yeah Boston area hit pretty hard
Don't sell yourself short! If you've got a brain, you have the potential for insight :)

(For what it's worth, I agree that it doesn't make sense to participate in a discussion like this without at least having done some background reading)
Sorry, it took me a while to catch up on the latest developments in webrtc and write my response. If I had seen yours first, I would not have replied redundantly.
Indeed! The praise should be genuine (the author finally fixes a bothersome issue, comes up with a particularly nice solution, etc), and compact. Often a :thumb-up: is totally sufficient.
Lockdown Critics May Have Some Valid Points
I used insomnia for a while, it was ok and felt more lightweight than postman. But then after using it for about a month it started crashing for no reason and since then I have tried using it a few more times but it crashes on me Everytime. I even updated to the latest version, did a clean uninstall using iobit and reinstalled but same.
FDA asks hand sanitiser manufactures to make product less appealing to drink
> However on the show it seemed like he was treated as a controversial figure.

Well, I guess this answers that (and maybe more).

But to give my personal perspective, I’m not sure what Peterson’s motives are. He has stated that he used to have severe clinical depression, which might help contextualize some of his more “grim” lectures/videos. (He and his daughter are able to mitigate their depression by having a carnivore diet. Strange, but it seems to work for them.)
Here's more random stream of consciousness about this:

> Pareto Mitigation: An evidence-based approach

I love how this uses "evidence-based" as a dogwhistle followed by proposing an approach without providing any sort of evidence about the efficacy of the approach.

> Those who have lost their jobs tend to be those workers who are in a lower socio-economic bracket and have jobs that do not allow one to “work from home”.

This is presented without evidence. I think there's a reasonable chance this is the case, but many essential businesses/industries employ primarily lower socio-economic classes so who knows. This is just presented like you should agree with it.

It's also not clear that those that are more disadvantaged are actually worse off here. There has been a very large increase in the amount and accessibility of unemployment benefits.

There seems to be excessive use of bolding random segments of sentences. I don't know if this is just a stylistic thing, but ¯\_(ツ)_/¯.

On suicides, it seems like most of the argument should be verifiable from data (i.e. by its claims, we should be able to see an actual increase in suicide deaths). Is that data not available yet?

> A preventable decline in preventative care

Even the (supposedly evidence-based) proposed approach would likely lead to exactly the same decline in preventative care. This error is repeated throughout the document where there's this idea that the changes that we've seen are due to lockdown and will just go away otherwise (except, of course, for when the change is positive and, clearly, the not-quite-lockdown approach recommended would continue that positive change).

> Be wary of “hero culture”

This is maybe the strangest section. Why does this just talk about a hero culture related to real scientists? Do we think that people are more likely to think some nerdy scientist is a hero rather than our heroic manly president? This seems like it should be a point in support of lockdown to me (tbh, it seems like it shouldn't be a point at all, it's just an attempt to discredit experts).

> The Soul of the Country is at Stake

OMG. I skipped this in first skim. Yeah, this makes me think I've wasted my time even thinking about this thing, this is clearly a plea to the emotions of a specific subset of the population. I'm done.
Decephalized HN posters would be great for fascist dystopia.

If you can justify the creation of human cattle the purposes of masturbation, you are a monster. You are worse than hitler, because even hitler cared about german people. You would be complicit with "I Have No Mouth And I Must Scream" just for your own sexual amusement. and because you "LOVE SCIENCE" so much
This is just an attention whoring, bragging and self-praise, lots of ambitions with little or no real education. Canonical definition of a russian.

Any attempt to apply mathematical methods for modeling of fully observable, deterministic, stable systems, like probability or neural networks (they assume, by definition, stable patterns, which arise from underlying laws at the training stage and in feedback loops) will inevitably lead to a failure. Always. In principle.

Gamefication of markets is even more stupid idea, hence, again, an adequate game model requires a well-defined set of rules which does not change in the middle of the game, and, like any other model or simulation, requires that all (every) relevant factors has been adequately represented, which will never be the case.

Last but not least, one never trade in the middle of the chart, on the past data. If a model fits the past data it only means that it has been trained on the past data, which is already "stable". It will be unable to deal with new data because it will be nothing like training and testing set in principle.

Even classic methods from signal processing will not do, because a signal implies regularly and predictability (a predetermined set of probabilities), while markets do not possess such properties.

This is just misapplication of methods without any understand of underlying phenomena, methods being used, their applicability and limitations.

Read some Hamming lmao.
I would love to see some sort of AI be able to play and then understand the rules correctly. Then eventually replace/aid referee's on the field.
A good trick to combine with this is ControlSockets.. you can have multiple SSH/SCP connections over the same actual SSH connections. And starting a new SSH over the existing connection is much faster than the initial connection particularly if you are on higher latency (e.g. from Australia at 250-400ms)

```
Host xyz
HostName 1.2.3.4
ControlMaster auto
ControlPath ~/.ssh/sockets/%r@%h-%p
ControlPersist 600
```

Then if you SSH to the same host multiple times it will re-use the connection and it persists for 10 minutes after you disconnect.

If you are using a ProxyJump like the above post this can speed up the initial ProxyJump connection.. or you can just use it with normal SSH (which is what I do) and when i want to open multiple tabs to the same machine its significantly faster.
I worked for an organisation that decided to stop outbound SSH for reasons that weren't adequately well explained, exceptions were painful to get re-applied, so most people just cranked up corkscrew and did precisely this.

Only challenge is that getting corkscrew compiled on Windows is a massive pain.

[n] https://github.com/bryanpkc/corkscrew
Build a Twitter clone in 10 minutes with Rails, CableReady, and StimulusReflex
> we wouldn't pass a law ordering people to not drive around in normal times,

We absolutely pass a ton of laws to make driving around safer, including restricting driving around when it's particularly dangerous (for example, when a person has had a bit to drink).
I've reverse engineered a number of content encryption schemes. It's always a ton of fun, and you get to see the large amount of psychological warfare at play at the higher tiers.

A very common trick that I've seen in a lot of Japanese games, for offline material, is to combine a hashing system and encryption. That is, the game will attempt to load "main.script", which is a custom bytecode scripting language. The file stored on disk would have the filename of a SHA1 hash of "main.script", but the contents would be encrypted with a private key like "tprics.niam". "main.script" then loads a number of other files using its scripting system, so it's a very annoying process to take the whole thing apart, as you need to hunt down the original filename through the scripting system. Either that or you guess at filenames.

You tend to see some really high-level effort put into systems, like the one game I took apart that had its own custom scripting language with classes and coroutines.

https://gist.github.com/magcius/bff948b13128b70695e3841e2084...

One game I found had a custom bytecode system that drove me nuts for weeks. The opcodes were specifically picked so that a large number of the popular ones were reflections of each other in dec, hex and binary. So you'd go "I've seen opcode 0x0353 before", but alas, you had actually seen opcode decimal 353. Similarly, there were opcodes 101 and 0x101 and 0b101 and they all did slightly different things. You think you could stick to hex, but there's enough slop in the process and your brain is so used to pattern-matching that it was pretty effective.
Did you not need to set up your home router, too?
Torres was a bit of a flop at Chelsea. This goal was kind of a saving grace.
Show HN: Corporate Response. An index for how companies respond to world events
In terms of a metric akin to "mathematical DALYs", Galois was perhaps the most impactful early death of all, followed by Abel. Both Galois and Abel founded entire branches of mathematics before the age of 25.
> Maybe mention something about the long term issues that it appears could be a reality for even those who "don’t feel sick at all, some people feel a little bit sick"?

Have you seen any scientific literature alleging this possibility in those who are not seriously ill? Not to sound like the WHO, but I have not personally come across any evidence that this is at all true. And indeed it seems highly non-credible.

> Also, while the the goal of flattening the curve was focused on lowering the impact on health care, as seen in Australia and New Zealand it can also result in stopping nearly all local transmission.

This is true, but now they can't let anyone into their country until the whole island has been vaccinated. That could get very tricky.

Well, I suppose they could do what Taiwan and other countries have done and aggressively test&quarantine all entrants. That's certainly possible.
A lot of obfuscators out there use VMs with convoluted pieces of assembly implementing each opcode of the VM. Pushing, popping, swapping register values, etc, etc. In many cases the opcodes are microinstructions that can be used to implement x86 instructions making the VM an x86 emulator. It's super satisfying when you finally get x86 opcodes out of the other end and then patch those back into the program.