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No. The reason perturbation theory doesn’t work as well for QCD as it does for QED is because of two reasons:

1. The coupling constant of QCD is much higher than QED so contributions to the overall result from Feynman diagrams that have more vertices (the multiplicative factor of each element in the sum is proportional to the power of the number of vertices) don’t vanish as quickly as they do for QED

2. The gauge bosons in QCD (i.e. gluons) themselves have colour charge whereas those in QED (i.e. photons) do not have electrical charge.

frutigeron The Night Watch [pdf] (2013)

The problem is that map requires two template parameters and not just one.

frutigeron Why is it so hard to buy things that work well? (2022)

If that's what you're suggesting, you probably don't have that much nose hair.

frutigeron In the Rockets' Red Glare: The past and future of hot-rodding in America

> She's at the level that you might expect to find a long interview with her in the New Yorker.

https://www.newyorker.com/magazine/2018/04/30/rachel-kushner...

frutigeron Ancient Sumerians created the first writing system

Isn’t that redundant? It’s like asking everyone to prefix every statement with “As far as I know…”

frutigeron Drinking water systems for 26M Americans face high cybersecurity risks

Somehow I doubt the security posture was magnificent even before the defunding. This kind of thing is usually a simple checklist item for companies let alone government agencies.

frutigeron The Soul of an Old Machine: Revisiting the Timeless von Neumann Architecture

GP is referring to universal Turing machines (those that can emulate an arbitrary Turing machine) and not a specific Turing machine.

frutigeron Robot Dog and Leafblower = Labor-Free Yardwork

Leaving them be is the most zen.

frutigeron Notepad++ is 21 years old

Just checked, Dev-C++ seems to still be going: https://www.bloodshed.net.

frutigeron A few secure, random bytes without `pgcrypto`

My HN client uses the HN API which reveals the true post time of the comment. See https://seville.protostome.com/item/?id=41641314.

frutigeron Show HN: Phobos – an engine extension for Red Alert 2: Yuri's Revenge

What does this extension do?

I played a lot of RA2:YR in my youth but am not in the RA2 modding scene and I couldn't really understand how to use this extension or what it might provide.

frutigeron Applied Mathematical Programming

> A fact of life: Nearly always people with money, power, and optimization problems don't understand optimization, fear and resent those who do, and choose just to avoid the subject.

Worth considering this hard question: who optimized their life better? Them or us?

frutigeron A picture of the sun, taken with a neutrino detector, at night through the Earth

Light scatters off the plasma inside the sun before it can make it to the outer layers.

frutigeron No Salt

> The food distracts me from the conversation but the conversation distracts me from the food, and all of a sudden it's gone before I even had the chance to reflect on the taste.

Chew carefully. Eat slowly. Sip water. Your digestive system will thank you for it.

frutigeron Complex life forms existed 1.5B years earlier than believed, study finds

> while producing enough energy

“while transforming enough energy” is both more accurate but also educates the lay reader by hinting at the processes involved.

frutigeron Porffor: A from-scratch experimental ahead-of-time JS engine

Not sure where you mean by synchronously but if you mean what I think you mean then that is not correct behaviour. This is important to ensure predicatibility.

Eg.

    Promise.then(() => console.log(“a”));
    console.log(“b”)

must log [“b”, “a”] and not [“a”, “b”].

frutigeron DevRel at HuggingFace

Don't know which company you work for but this is unequivocally not true at mine. HR are subservient to Engineering (our CEO started as a senior SWE ~15 years ago). I am also one of those "useless" EMs that barter for the comp packages of my most valuable SWEs.

frutigeron DevRel at HuggingFace

Hard to say what situations you have experienced because the details are scant, but in my experience usually those people have helped, in one way or another, to ensure that my pay check has the specific number that it does.

Simply put: they use the information they gain to justify the utility of individual team members to the overall effort and thus the proportionate compensation.

frutigeron Walmart Selling MacBook Air with M1 Chip for $649 Starting Today

OK, but what did you find after a few cursory searches? Many of the results would lead you to HN threads... where you would find that quality you are looking for.

frutigeron Walmart Selling MacBook Air with M1 Chip for $649 Starting Today

> Has anyone used OpenBSD or Asahi Linux on the M1?

Has anyone tried searching this question on the internet?

frutigeron The Cheapest NAS

`zfs send --raw` of encrypted datasets to https://www.rsync.net/products/zfsintro.html.

frutigeron Butterflies flew 2,600 miles across the Atlantic without stopping

> …parents…

Hey, we were all kids once!

frutigeron Tiny bright objects discovered at dawn of universe baffle scientists

Unfortunately we have not observed any anisotropy so it seems implausible.

frutigeron 6 months ago, I left the bullshit industrial complex

I don’t know why you are downvoted but the middle class was, and more broadly the merchant class were, literally created (and I mean that literally) by technology that invalidated the presumptions of the landowner class in several societies in the last few centuries. Some of these events were more violent than others.

frutigeron Why does current flow the opposite way from the electrons?

Quarks and gluons, or quantum chromodynamics

frutigeron Language is primarily a tool for communication rather than thought [pdf]

> all the extra meanings such as good luck created by having that network, possibilities to fortune, a kind of karma, and more.

In your 20s you might think of your network as people who you went to college with. In your 40s your network takes on a meaning much closer to what you have described. I don’t yet know what happens in your 60s.

frutigeron Can you inherit memories from your ancestors?

That’s really not always true. And it’s disingenuous to so unequivocally write the title of a paper about mice when the headline article is about humans.

frutigeron OpenSSH 9.8

  Future deprecation notice
  =========================
  
  OpenSSH plans to remove support for the DSA signature algorithm in
  early 2025. This release disables DSA by default at compile time.
  
  DSA, as specified in the SSHv2 protocol, is inherently weak - being
  limited to a 160 bit private key and use of the SHA1 digest. Its
  estimated security level is only 80 bits symmetric equivalent.
  
  OpenSSH has disabled DSA keys by default since 2015 but has retained
  run-time optional support for them. DSA was the only mandatory-to-
  implement algorithm in the SSHv2 RFCs, mostly because alternative
  algorithms were encumbered by patents when the SSHv2 protocol was
  specified.
  
  This has not been the case for decades at this point and better
  algorithms are well supported by all actively-maintained SSH
  implementations. We do not consider the costs of maintaining DSA
  in OpenSSH to be justified and hope that removing it from OpenSSH
  can accelerate its wider deprecation in supporting cryptography
  libraries.
  
  This release, and its deactivation of DSA by default at compile-time,
  marks the second step in our timeline to finally deprecate DSA. The
  final step of removing DSA support entirely is planned for the first
  OpenSSH release of 2025.
  
  Potentially-incompatible changes
  --------------------------------
  
   * all: as mentioned above, the DSA signature algorithm is now
     disabled at compile time.
  
   * sshd(8): the server will now block client addresses that
     repeatedly fail authentication, repeatedly connect without ever
     completing authentication or that crash the server. See the
     discussion of PerSourcePenalties below for more information.
     Operators of servers that accept connections from many users, or
     servers that accept connections from addresses behind NAT or
     proxies may need to consider these settings.
  
   * sshd(8): the server has been split into a listener binary, sshd(8),
     and a per-session binary "sshd-session". This allows for a much
     smaller listener binary, as it no longer needs to support the SSH
     protocol. As part of this work, support for disabling privilege
     separation (which previously required code changes to disable) and
     disabling re-execution of sshd(8) has been removed. Further
     separation of sshd-session into additional, minimal binaries is
     planned for the future.
  
   * sshd(8): several log messages have changed. In particular, some
     log messages will be tagged with as originating from a process
     named "sshd-session" rather than "sshd".
  
   * ssh-keyscan(1): this tool previously emitted comment lines
     containing the hostname and SSH protocol banner to standard error.
     This release now emits them to standard output, but adds a new
     "-q" flag to silence them altogether.
  
   * sshd(8): (portable OpenSSH only) sshd will no longer use argv[0]
     as the PAM service name. A new "PAMServiceName" sshd_config(5)
     directive allows selecting the service name at runtime. This
     defaults to "sshd". bz2101

frutigeron Can you inherit memories from your ancestors?

> "Parental olfactory experience influences behavior and neural structure in subsequent generations"

"[...in mice]"

frutigeron Author Clock: a novel way to tell time

The app (or some equivalent) may already exist.

The whole point of this product is that you get a device whose hardware is tailor made (e-ink, no other distractions, long time between charges, etc.) for this purpose.