cygx

15 ms·

151.
by cygx 5y ago
Unicode had to define the bidirectional rendering Why? They could have left this for a higher layer to handle.
152.
by cygx 5y ago
If we assume a signed int for available space Note that as it is currently defined, the Unicode codespace ranges from U+0000 to U+10FFFF, with some reserved codepoints (eg to encode surrogate pairs), yielding a total number of 1,112,064 a
153.
by cygx 5y ago
Should Unicode contain sub/superscript variants of Hangul or Devanagari or letters from hundreds other non-latin-alphabae languages? Nope, you'd use markers similar to U+200E (LEFT-TO-RIGHT MARK) and U+200F (RIGHT-TO-LEFT MARK)
154.
by cygx 5y ago
45.5 bn ly is the approximate comoving distance of the surface of last scattering (the source of the microwave background and the point where the universe becomes opaque). This is the boundary of the universe observable via electromagnetic
155.
by cygx 5y ago
What is the expansion of the universe? The distance between galaxies (that aren't gravitationally bound to each other) increases over time. Or should I first ask, is there a center? Probably not. If you inflate a balloon, any point
156.
by cygx 5y ago
What are you basing the 45 bn ly on? A redshift of z~13 should correspond to a comoving distance of about 33 bn ly, whereas 45 bn ly would correspond to z~600.
157.
by cygx 5y ago
It's not as if the Germans just sold the Russians some instruments they then decided to switch off after the fact: This was an ongoing joint mission where the Max Planck institute was responsible for parts of the ground support - see
158.
by cygx 5y ago
Physicists conflate a tensor with its representation in some coordinate system Rather, mathematicians that complain about the physicist's approach just haven't advanced far enough in their studies to understand how vector bundle
159.
by cygx 5y ago
The terms co- and contravariant make sense on a purely algebraic basis, with components of tensors transforming 'the same as' or 'opposite to' the basis vectors. That the basis transformation is induced by transformation
160.
by cygx 5y ago
I'm aware. Though if we want to be more precise, that's about tensor fields, where the basis transformations of the underlying vector bundles (the tangent and cotangent bundle) are in turn induced by coordinate transformations of
161.
by cygx 5y ago
There are no coordinates to transform in an ordinary tensor space and therefore no way for a tensor to be affected by such a transformation. Sure there are: Any basis of the underlying vector space(s) induces a basis of the tensor space.
162.
by cygx 5y ago
https://www.astro.ucla.edu/~wright/tiredlit.htm
163.
by cygx 5y ago
In the 1960s, the Pentagon proposed nuking 200+ million Chinese And in the meantime, China became the United States' largest source of imported goods and 3rd largest export target (or 4th largest if you count the EU as a single bloc
164.
by cygx 5y ago
After the US and its allies are done destroying Russia, they will go after China next. Doubtful, given the state of the global economy.
165.
by cygx 5y ago
Here are some terms that already exists: 'economic bubble', 'pump and dump', 'greater fool theory', ...
166.
by cygx 5y ago
That's not the definition the author is going with I think it is, given that he links to https://xkcd.com/1537/ as stereotypical 'weak' behaviour. Python sits somewhere inbetween Javascript and Haskell
167.
by cygx 5y ago
The weak/strong classsification is a bit less well-defined than the dynamic/static classification, but in general, languages differ in how strongly they 'care' about their types. For example, in Javascript, you can add a
168.
by cygx 5y ago
Fortran forbids aliasing. This gave Fortran compilers an edge before the introduction of restrict with C99. Not sure if there still exist semantic differences affecting optimizability to this day - perhaps things related to automatic vect
169.
by cygx 5y ago
> This is equally as hard to validate as any claim to authorship, and something humanity has been able to manage for centuries. Tens of thousand of pieces of digital artwork being scraped by bots from DeviantArt and monetized as NFTs is
170.
by cygx 5y ago
The question is if crypto and the specific distributedness that NFTs enable add anything to that. So you also have no idea if there's any worth to this in practice? We seem to be in violent agreement ;)
171.
by cygx 5y ago
Here's how I imagine such a system would work: Some agency owns the copyright to some digital asset. It issues an exclusive usage license to the holder of the NFT, whoever that may be. The value the NFT provides is the ability to freel
172.
by cygx 5y ago
There are generally no 'rights' transferred with NFT sales. Indeed. But people want it to work that way, or even assume it already does. The systems may adapt and yield better mechanisms, but still, I'm wary that there is
173.
by cygx 5y ago
the technologies you mention are well covered by HTML5 and JS today Browser vendors could have decided to choose the pure Javascript route (eg asm.js, SIMD.js), but for now have decided to throw their weight behind WASM instead: SIMD.js g
174.
by cygx 5y ago
So what is WASM expected to bring to the table for this use case we don't already have today? It's the latest iteration of Java Applets, Flash, Silverlight, PNaCL, ... If something gets re-invented over and over again, there cle
175.
by cygx 5y ago
What does “fake” even mean in this context? An NFT minted by someone who doesn't hold the rights to the digital asset it is supposed to represent. NFTs were advertised as a way for creators of digital content to monetize their work,
176.
by cygx 5y ago
Which is why UTF-16 failed To be pedantic, what failed was UCS-2, the enconding formerly known as just 'Unicode'. UTF-16 was introduced with version 2.0 of the standard and can encode all codepoints thanks to the surrogate pair
177.
by cygx 5y ago
Flags are not that hard, they're a very specific block combining in very predictable way. But before their introduction, you could decide if there's a grapheme cluster break between codepoints just by looking at the two codepoin
178.
by cygx 5y ago
Julia's parser is written in Scheme using femtolisp. Look for *.scm files and the 'flisp' directory in the repo[1]. [1] https://github.com/JuliaLang/julia/tree/master/src
179.
by cygx 5y ago
It's not at all a readable language imo. Compared to what? Python's closest peers are arguably the members of the P*-family of programming languages (Perl, Python, PHP, with Ruby as honorary member), and among that group, Python
180.
by cygx 5y ago
as the Unicode Standards committee was just about realizing that codepoints weren't an ideal unit Where 'just about' means 1996 at the latest, the release of Unicode 2.0 (cf chapter 5 [1], p. 21, Character Boundaries ). [1

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