This is perhaps the most popular version of Great doubt in 21st century China
Fuller quote as seen e.g. at: www.hrfjw.com/fjrw/hcrw/ywfs/324750.html
大疑大悟,小疑小悟,不疑不悟
translation;
Great doubt, great underestanding. Small doubt, small understanding. No doubt, no understanding.
k.sina.cn/article_5668613235_151e02c7300100wutq.html attributes it to modern day Chinese "Master Chongci" (崇慈法师).
Craig Silverstein by Ciro Santilli 37 Updated 2025-07-16
Video 1.
How Google began by Craig Silverstein part 1 (2006)
Source. Talk given at the University of North Carolina. A possibly official invitation from the time: www.ibiblio.org/pjones/blog/googles-craig-silverstein-at-unc-1026/.
GitHub by Ciro Santilli 37 Updated 2025-07-16
This is where Ciro Santilli stored his code since he started coding nonstop in 2013.
He does not like the closed source aspect of it, but hey, there are more important things to worry about, the network effect is just too strong.
Gauge symmetry by Ciro Santilli 37 Updated 2025-07-16
Video 1.
Lawrence Krauss explains Gauge symmetry by Joe Rogan (2017)
Source.
While most of this is useless as you would expect from the channel, it does give one key idea: you can change charge locally, but things somehow still work out.
And this has something to do with the general intuition of special relativity that only local measures make much sense, as evidenced by Einstein synchronization.
Hyperfine structure by Ciro Santilli 37 Updated 2025-07-16
Small splits present in all levels due to interaction between the electron spin and the nuclear spin if it is present, i.e. the nucleus has an even number of nucleons.
As the name suggests, this energy split is very small, since the influence of the nucleus spin on the electron spin is relatively small compared to other fine structure.
TODO confirm: does it need quantum electrodynamics or is the Dirac equation enough?
The most important examples:
Equations of motion by Ciro Santilli 37 Updated 2025-07-16
These are the final equations that you derive from the Lagrangian via the Euler-Lagrange equation which specify how the system evolves with time.
It is non-trivial to determine what is the smallest legal ELF file, or the smaller one that will do something trivial in Linux.
In this example we will consider a saner hello world example that will better capture real life cases.
We will get into more detail later, but it is good to have it in mind now:
  • section: exists before linking, in object files.
    One ore more sections will be put inside a single segment by the linker.
    Major information sections contain for the linker: is this section:
    • raw data to be loaded into memory, e.g. .data, .text, etc.
    • or metadata about other sections, that will be used by the linker, but disappear at runtime e.g. .symtab, .srttab, .rela.text
  • segment: exists after linking, in the executable file.
    Contains information about how each segment should be loaded into memory by the OS, notably location and permissions.
Because DNA replication is a key limiting factor of bacterial replication time, such organisms are therefore strongly incentivized to have very minimal DNAs.
Power, Sex, Suicide by Nick Lane (2006) 7 "Why bacteria are simple" page 169 puts this nicely:
Bacteria replicate at colossal speed. [...] In two days, the mass of exponentially doubling E. coli would be 2664 times larger than the mass of the Earth.
Luckily this does not happen, and the reason is that bacteria are normally half starved. They swiftly consume all available food, whereupon their growth is limited once again by the lack of nutrients. Most bacteria spend most of their lives in stasis, waiting for a meal. Nonetheless, the speed at which bacteria do mobilize themselves to replicate upon feeding illustrates the overwhelming strength of the selection pressures at work.
The Horrible Horrendous Terrible Tremendous Mining Pool inscribed a few cute Coinbase messages during their operation in 2012-2013.
Many of their messages also mention SockThing, which was part of their mining infrastructure:
Starting from their very first ASCII transaction on block 197602 (2012-09-07), there is what seems to be a poem spread across several transactions. Some of the lines are repeated, presumably because they didn't update the current line to a new line and so mined the same thing multiple times:
I am a pretty princess
covered in mud and blood
water with stuff in it
like everything else that wiggles or jiggles
screaming might not be your waY
see no reason to operate otherwise since
came into the world naked, wet and screaming
but silence will never be mine
until I am dead
but the smell will also give that away
gather all my things
load them in a big boat
airlift that to Kansas
and light it on fire
drop it from 7,000 feet
then railgun my corpse straight down
The sentences are not very coherent together, perhaps this is because lines were chosen by different miners one at a time.

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