sleavey (u/sleavey) - Readit News

sleavey commented on Saintcon: Lock Picking Lawyer Keynote youtube.com/watch?v=IH0GX... · Posted by u/brudgers

asimpletune · 4 years ago

Much has been made about LPL s and his astonishing skill, but I’d like to briefly mention my appreciation for LPL the showman.

I really think the style and format of his show makes it so incredibly watchable. I love his voice, the delivery, and the way he so articulately breaks down how he thinks and approaches problem solving. He really makes you feel like you could do it too.

It’s very subtle but as a showman he’s one of the alltime best on YouTube.

sleavey · 4 years ago

> and the way he so articulately breaks down how he thinks and approaches problem solving

Agreed. I think this video is a nice (simple) demonstration of his style in this regard: https://www.youtube.com/watch?v=SoGCIuO2XkM

sleavey commented on Ask HN: What are the best-designed things you've ever used? · Posted by u/whitepoplar

squarefoot · 4 years ago

Support in the browser would require the browser to stay on the whole time, along with the computer. Bittorrent clients are better run on small less power hungry boards (RPi, etc.) or on hardware that is meant to be running 24/7 anyway. For example, I run the Transmission daemon on my XigmaNAS home file server. The NAS is headless, but I can control the daemon through its remote GUI, so as soon as I click on a torrent or magnet link on the browser, it calls the local Transmission GUI which sends the info to the client on the NAS which starts the download freeing the browser and the PC of any further work.

https://xigmanas.com/xnaswp/

https://github.com/transmission-remote-gui/transgui

sleavey · 4 years ago

It doesn't require the browser to be always on, unless you want to download something (which is the same as a normal download). Do you mean it's better for the health of the swarm for a particular file? Otherwise I'm not sure I get your point.

sleavey commented on Austria makes Covid19 vaccination mandatory as of Feb 2022 rainews.it/tgr/tagesschau... · Posted by u/DyslexicAtheist

66fm472tjy7 · 4 years ago

I would have preferred giving lower priority in hospitals to voluntarily unvaccinated persons seeking COVID treatment. That would require no violation of personal freedoms and avoid the great economic cost of implementing a lockdown at the start of the touristic winter season at the cost of letting these people suffer the consequences of their belief that the vaccine is more dangerous than the disease.

sleavey · 4 years ago

While we're at it, let's give lower priority to obese, smokers, alcoholics... or let's not. It's a slippery slope to start discriminating against people based on whether the admitting staff think they're worthy of treatment or not. We're better than that.

sleavey commented on I hate password rules schneier.com/blog/archive... · Posted by u/CapitalistCartr

throwawayboise · 4 years ago

Supermicro BMC passwords do that. Recently (i.e. this year) I set up a bunch of servers and was setting the BMC password to a known value.

Apparently there is a limit of 20 characters for the password. The password I set was 21 characters (which was accepted without error).

When I tried to log in with this password, the login was rejected.

However if I log in with just the first 20 characters of the password, it works.

sleavey · 4 years ago

They should at least make their sign-up and login password fields have the same max length attributes...

sleavey commented on Campagnolo's revolutionary new gearing system from 1946 cyclingtips.com/2021/11/b... · Posted by u/giuliomagnifico

xchaotic · 4 years ago

also proper fixie/messenger bikes. I used to use one when commuting in London, due to low price it was relatively unattractive to bike thieves and it was very simple to maintain - no brakes, no gears (you had to skid/backpedal to stop quickly)

sleavey · 4 years ago

Didn't they get banned or there was a campaign to ban them after someone was killed by someone riding a fixie, in London?

sleavey commented on Container Logistics lesswrong.com/posts/PHmYh... · Posted by u/secondary

superice · 4 years ago

Expert here: I'm a consultant for small to medium size container terminals and various hinterland container logistics operations. This article is a pretty good introduction to the subject, but could go further into the economic interests at play here.

If you book at a shipping line, there is really a tree of companies being engaged to work. There are two empty depots involved for empty pickup and delivery. The container is usually owned by the shipping line, but stored at various third party locations. Then there is the two sea side terminals, who need to do 4 billable operations usually called Terminal Handling Charges or THC for short. These are in order gate-in land, out onto ship, in from ship, gate-out landside. Then there is the temporary storage at the sea side terminals on either side. For you as the shipper you can usually deliver the full container a few days before the cargo closing for outbounds, and you get a few days to pick up the full container once it is discharged off the ship. Failing two meet these time windows will result either in your container getting rejected at the gate, which is expensive because you have to pay for the hinterland transport 3 times instead of once (try #1, return after fail, retry). Alternatively you pay the storage costs, these are often called demurrage charges. In addition to these all there are restrictions on the time you as the shipper can take to stuff or strip (fill/empty) the container, going over this you're going to get charged something called detention charges (a late fee or "renting" free for the container, you get X days included in the transport).

The tricky part comes in when the ETA of the ship shifts. Say you already picked up the container from the empty depot to stuff it, but then the shipping line notifies you the ship is delayed by a week. You now have to store it somewhere, and if you're not careful, the shipping line will try and charge you detention fees. If you deliver it "early" to the terminal (e.g. in time for the old ETA, but early according to the new ETA) you've created a problem for the terminal (high yard utilization), you're going to get charged a demurrage fee, or the terminal will not accept the container and send the trucker on their way again, causing you to have to pay for the transport. Notice how in none of these cases the shipping line is impacted, and sometimes they even profit off of it.

One of the ways to avoid this might be to book more door-to-door transports (or 'carrier haulage') as opposed to arranging the hinterland transports yourself (or 'merchant haulage'). This is often not ideal because it requires shipping lines to have specific knowledge of the hinterlands they serve, but also puts the onus on them and them only to fix this. It also does put even more power into the hands of shipping lines, which is something the sector should probably avoid.

The removal of the 2-high stacking limit only helps to relieve pressure on the 'hinterland' storage equation of it all, it does nothing for the sea side terminals which are already running at capacity.

sleavey · 4 years ago

What happens when the fees due on collection get so high that the importer / final delivery company / final customer changes their mind about collecting the container? Who has to store and ultimately dispose of the contents? Do they get to auction it off and keep the proceeds?

sleavey commented on All adults can get a Covid vaccine booster in CA, not just those CDC listed npr.org/2021/11/11/105485... · Posted by u/bryan0

sleavey · 4 years ago

Would you be in favour of applying this policy to all people displaying behaviours deemed at higher risk of requiring hospital treatment? And who should decide what constitutes risky activity?

sleavey commented on All adults can get a Covid vaccine booster in CA, not just those CDC listed npr.org/2021/11/11/105485... · Posted by u/bryan0

sleavey · 4 years ago

We weren't talking about mandates, but I'll bite. The difference is you don't have to trust the government to know seat belts save lives; the law on seat belts is common sense to anyone of sound mind. On the other hand, show me anyone who can see that getting an injection of some vaccine of unknown (to the average recipient) content and function is common sense. Note that I'm NOT making ANY claims about the vaccine efficacy or danger of lack thereof, simply that a typical individual can't look at the clear liquid in the syringe and innately know that it saves lives. It necessarily requires faith in government or medical institutions or doctors who tell us they are safe. Seat belts don't require such faith, so such mandates can't be compared like for like.

sleavey commented on All adults can get a Covid vaccine booster in CA, not just those CDC listed npr.org/2021/11/11/105485... · Posted by u/bryan0

giga_chad · 4 years ago

I'm unvaccinated, been working from the office the entire time, not planning to get it. As a healthy, young man, with healthy vitamin D levels, the risk of getting noticeable symptoms, let alone ending up in a hospital, is a nice round 0 (I ran the numbers, there were 0 such cases worldwide). I have also never been tested, or subject to any limitations regarding this status.

sleavey · 4 years ago

I did the same calculation and came to a similar conclusion. Here's one such calculator: https://www.qcovid.org/Calculation. There are others based on more recent data, as well as papers and government data with age-stratified hospitalisations and deaths by vaccination status.

Many seem to have forgotten life is not risk free.

sleavey commented on Astrophysicists unveil glut of gravitational-wave detections nature.com/articles/d4158... · Posted by u/gmays

jjoonathan · 4 years ago

Speaking of which, I can understand how interferometry gets you to, say, 1/1000th of a wavelength, but the wavelength is 1000nm. How do they go from 1nm to 1/10000th the width of a proton? What's the trick?

Is it an integral transform thing, like how spectrum analyzers can claim super low noise floors if you sort of gloss over the "noise is proportional to badwidth" part and look in a tiny bandwidth without normalizing?

sleavey · 4 years ago

Cavities. We trade off bandwidth for peak sensitivity by sending the same light back and forth between mirrors in the arms of the interferometer hundreds of times. As the gravitational wave passes, the same light samples it over and over and picks up additional phase shift, enhancing the signal. The downside is that we can't see gravitational waves at signals far above the cavity pole frequencies at a few 10s of kHz, but the most promising sources we aimed at when the detectors were designed were considered to be below that.

We also use techniques called power and signal recycling to enhance this bandwidth-sensitivity tradeoff even more. Combined these techniques give you what remains between your 1/1000th wavelength and the actual sensitivity of LIGO and Virgo.