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strstr

1,084 karma · joined December 18, 2011

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strstr··on Learning to Suffer
Really depends on the activity. For any activity where overuse injuries are common, it’s probably a good heuristic.

I consider myself reasonably fit, but I’m not sure any of the activities I do strictly require physical pain. Soreness? Fatigue? Sure. But rarely pain, unless I’ve made a mistake.

strstr··on A Nepali team has made the first winter ascent of K2
For a long time, both Tenzing Norgay and Edmund Hillary evaded the question of who summitted Everest first. They reached the top as a team.

Most of the "forgetting" seems to happen when it comes to communicating about larger, less notable expeditions.

strstr··on Chemicals called PFAS and PFOS are in the blood of virtually every person
Don’t eat microwave popcorn (PFOAs have been replaced there with other PFCs, which might not be an improvement). Avoid other similarly non-stick heated disposable packaging. Avoid overheating non-stick pans (or don’t use them at all). Use a filter if it’s appreciably in the groundwater.
strstr··on Chemicals called PFAS and PFOS are in the blood of virtually every person
Most people avoid washing waterproof gear often (and particularly not at high temps), since it’s believed to damage the waterproofing. It’s particularly bad if you use normal detergent. That, indirectly, answers your question: it must leech in any conditions that damage its effectiveness.
strstr··on Chemicals called PFAS and PFOS are in the blood of virtually every person
Fluorocarbons are ubiquitous. Fluorocarbons are basically magic when it comes to repelling water.

Nordic skiing (and to a lesser extent, downhill skiing) have been going through a bit of a reckoning trying to remove them from competitions. Fluorowaxes are very effective for gliding quickly in wet conditions. The fact that they are melted during application makes them particularly pernicious.

Fluorocarbons are also ubiquitous in water repelling in clothing. Some of the more expensive brands of outdoor wear have moved to shorter chain fluorocarbons, but they haven't eliminated their use. From Arcteryx: "... non-PFC [water repellant] treatments... have fallen short of the level of performance and durability we deem imperative". It's likely less urgent with clothing, since these compounds are quite stable when left alone at normal temperatures.

strstr··on Poll: Will you take the Covid vaccine?
I have 4 family members in trials (2 Moderna, 2 Pfizer). I would volunteer for challenge trials if given the opportunity. I got the swine flu vaccine in 2010ish.

I would take basically any covid vaccine in a heartbeat. Personally, I see it as a moral obligation, since it is a necessary step to end the pandemic, and avoid impacting those that cannot take any of the vaccines.

Historically, vaccine side effect profiles are at most as bad as just getting the disease itself. There are early examples of contaminated vaccines (polio with SV40 in the 50s), but we’ve learned a lot about vaccine production since then.

I don’t expect to have the chance until ~July or later.

strstr··on Poll: Will you take the Covid vaccine?
The vaccines have already been tested in tens of thousands of people.
strstr··on An Airbnb Thanksgiving Burglary
It’s terrifying, but somewhat natural. They feel violated. AirBnB gives them a pittance. The police say they don’t think they will catch the crooks. The host shrugs their shoulders and moves on.

The author is looking for an alternative, even if it’s somewhat dark. Ideally, AirBnB would either provide or mandate insurance for situations like this, but they can probably increase profits by allowing this type of bad situation to hit a small minority of customers.

strstr··on US ends era of emotional support animals on planes
How does this fail after a moments scrutiny? Pet owners have an alternative: put them in cargo. People are categorically more important than pets. To suggest anything else is insulting, frankly.

(Note: putting kids and pets in the same category seems a bit bold.)

strstr··on US ends era of emotional support animals on planes
(While this might be an interesting hypo, it probably won’t be viewed charitably in the context of discussing pet allergies and planes.)
strstr··on AI researcher Timnit Gebru resigns from Google
It’s in the article?
strstr··on US ends era of emotional support animals on planes
Yes, people need to move. Which would you prioritize? Pets or GP’s spouse?

Pets are a choice.

strstr··on Covid-19, duration of viral shedding, and infectiousness: meta-analysis
Naive guess: the damage was already done. Cough is a response to the damage caused by the virus, not to the virus itself.

If you get shot, you still have a bullet wound when the bullet comes out.

strstr··on Moderna Covid vaccine candidate almost 95% effective, trials show
Maybe without the color? The facts you mention should speak for themselves.

The rhetorical style you are using is childish and inappropriate for this forum.

You are insulting most people who post here. This is definitely frowned upon.

strstr··on Moderna Covid vaccine candidate almost 95% effective, trials show
Your point is fine, but your rhetoric is WSB tier.

Come back when you’ve got your tendies.

strstr··on The True Size Of Countries: Mercator projection
I added in some missing pieces [1]. There are probably others.

[1]: https://thetruesize.com/#?borders=1~!MTI3MTAzMDM.NDg4OTk2MQ*...

strstr··on Biden wins White House, vowing new direction for divided U.S.
It’s not just military ballots. I believe it’s also ex-pats. These may counterbalance each other.
strstr··on A nameless hiker and the case the internet can’t crack
A few of the users have the same in game username, and have been online recently.
strstr··on Complexity in Operating Systems
The KVM example is sort of weird to me: the goal of that code inside KVM is to provide a comparatively "easy" interface for creating VMs on multiple architectures. The code isn't particularly motivating if you don't see how it's used.

Until you get pretty deep into the weeds, none of KVM's code can actually do anything architecturally specific, since all of the glue code is architecturally agnostic. KVM supports a ton of architectures, intel-x86/amd-x86/armv/s390/risc-v/...

On top of that, KVM tries to avoid having extra ioctls (essentially KVM syscalls). A lot of the ioctls are so flexible that they don't really tell you anything about what a CPU should* look like. The ioctls let you create a VM that is in essentially any valid state a CPU could reach (since VMs need to be migratable).

Take a look at the sample code in the rust kvm-ioctls crate [1] and you'll see what defines a VM.

1) Open the KVM fd for access to the ioctls.

2) Make the VM fd.

3) Make guest RAM, and shove the asm from up above into it.

4) Make a vCPU.

5) Initialize the registers for the vCPU.

6) Run the VM, and handle the exits (KVM sometimes can't handle what the VM is doing and returns to usermode to have them deal with it. Think device emulation).

This avoids initializing a lot of state for the VM, but it's enough to run it. Notable details are things like CPUID (supported cpu features for the VM), the Interrupt Descriptor Table, and the control registers. If this VM took an exception/interrupt right now, it would immediately triple fault. This sample VM is running in "real mode" (16-bit unpaged mode).

[1] https://github.com/rust-vmm/kvm-ioctls/blob/master/src/lib.r...

strstr··on How to deal with extreme physical pain
My situation was unusual, so I'm not sure my solutions would generalize. Sciatica in teens is very unusual. The cause, likely, was a series of fairly involved surgeries I had had as a young child combined with overuse. None of the orthopedists I saw were particularly sure about the cause, nor were the physical therapists.

The long term solution was to avoid triggers and increase core strength. The short term solution was NSAIDs and correcting sleep posture (getting an 8-9 hour reprieve from loading the muscles that spasm remains very helpful).

Long-distance running was a trigger for me (particularly running slowly, oddly enough), so I haven't run in basically a decade. I used to run 5 days a week. It was pretty clearly part of my identity.

Years later, I picked up rock climbing (2-3 days a week) and my problems incidentally went away. Whenever I stop climbing for a while, I get periodic minor flare-ups. Fortunately, the short term fixes can nip this in the bud, particularly if I start exercising again.

I don't know the details of their situation, but I would encourage them to seek out a physical therapist. And to change therapists if it doesn't work. It took me a while to find someone that could actually help. I have no idea why the first therapists did not suggest improving sleep posture.

strstr··on How to deal with extreme physical pain
"A healthy man wants a thousand things, a sick man only wants one".

There are so many forms of illness where this is true. I've never experienced anything nearly as persistent and painful as frozen shoulder.

The worst thing I've experienced was probably Sciatica as a teen. It was particularly frustrating since the pain was intermittent and invisible to others. Through fairly substantial lifestyle changes, I haven't had issues in more than a decade.

I hope everyone in this thread (and the author) is able to become well enough to return to their lives.

strstr··on How to deal with extreme physical pain
Good luck. I hope things take a turn for the better.
strstr··on Intermittent fasting from dawn to sunset induces anticancer response
Most people that are sick stop drinking. This polluted the early studies on alcohol safety.

More recent studies have pointed in the direction of “no safe quantity of alcohol”.

strstr··on Intermittent fasting from dawn to sunset induces anticancer response
This seems like an uncharitable take: OP seems to be arguing you should focus on what you can measure (even if it’s personal experience), and seek guidance when you need help.

The concrete advice at the end seems pretty supported by science. Drinking and smoking are definitively bad for you.

strstr··on Study helps explain why motivation to learn declines with age
It’s a rhetorical construct here: they mean a non-bike thing that also requires scraping your knees to learn.
strstr··on Falling five storeys from a New York rooftop changed my life
The doctor must have been making a bad inference. They must have assumed he had already had been given opiods because he didn't look like he was in that much pain (before the reduction). I wonder if he wasn't guarding his shoulder (because of the spine injury), which would probably make him look like he had already been given painkillers. Dislocated shoulders are incredibly painful if they are in the wrong position. And not particularly painful in the right position.

I can't imagine having a shoulder reduced while having a broken back and ribs (and wrist!). The forces required (and precise positioning) to do it comfortably would be hard if they had a broken back. My shoulder was reduced via the Snowbird method [1], which was not very painful. It requires a ton of force on your spine (and an assistant pulling on you ribs!), so obviously a no-go in this case.

[1] http://www.emdocs.net/wp-content/uploads/2015/01/Shoulder-Re...

strstr··on Twitter and Facebook's action over Joe Biden article reignites bias claims
The one this is about? https://nypost.com/2020/10/14/email-reveals-how-hunter-biden...
strstr··on Hard Data on Remdesivir, and on Hydroxychlorquine
They are saying that, even if HCQ+zinc is more right, HCQ alone should be an effective treatment (just less effective).
strstr··on Git Exercises
These were fun. I would recommend filter-branch over log/interactive rebase for find-swearwords.
strstr··on An Unprecedented Attack on Press Freedom
Agreed, the diplomatic angle is why it’s a total mess. I’m kind of surprised the US did not have her tried for manslaughter.
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