snarkconjecture

9 ms·

31.
by snarkconjecture 2y ago
R squared has extremely nice properties. If you add a bunch of linearly uncorrelated variables together, then compute R² between each variable and the sum, the R² values will sum to 1.
32.
by snarkconjecture 2y ago
I don't think the study authors would endorse the claim that this meaningfully lends credence to Penrose's theories about consciousness. Quantum effects are all over chemistry; that's nowhere near sufficient to provide much e
33.
by snarkconjecture 2y ago
Quantum computers are generally more powerful in the sense that they can solve a larger set of problems in polynomial time. i.e. BPP is contained in BQP but the converse is thought to be false.
34.
by snarkconjecture 2y ago
That sounds like the opposite of what graycat was suggesting.
35.
by snarkconjecture 2y ago
You could say that as well. Gamma is often (usually?) defined as any radiation that originates from nuclear state transitions rather than electrons; this tends to be very high energy but can overlap the range of EM radiation from electronic
36.
by snarkconjecture 2y ago
How so? Isn't the Markov property just a consequence of basic QM?
37.
by snarkconjecture 2y ago
For sufficiently large N, it's impossible to prove Halt_N correct. (The N required depends on your axioms.)
38.
by snarkconjecture 3y ago
This follows fewer of the principles on the "Brutalist Web Design" link than HN does. In particular, it's slower, has less obvious links, breaks my back button, and has (imo) distracting unnecessary decoration. I would also b
39.
by snarkconjecture 3y ago
"Ah yes, you wanted to know where the electro-weak mixing angle came from, didn’t you? It’s the sum of the angle of tilt of the Earth’s axis, and the angle of inclination of the Moon’s orbit. Well, not exactly, because the particle exp
40.
by snarkconjecture 3y ago
Why would a disappointingly simple explanation be a hint that there are gaps in our models? Or am I parsing that part wrong? I disagree that it's really that simple an explanation, though. Our best theoretical prediction for dark energ
41.
by snarkconjecture 3y ago
Yup. On which note, the Higgs' symmetry breaking should really have changed the vacuum energy density by something orders of magnitude larger than the density of dark energy...
42.
by snarkconjecture 3y ago
Big rip scenarios are inconsistent with dark energy having a constant value of w=-1, which is what the author is discussing in that paragraph. The article is wrong.
43.
by snarkconjecture 3y ago
It makes more sense if you've learned general relativity.
44.
by snarkconjecture 3y ago
Both of those are pressureless, so they could be dark matter but not dark energy. Except that primordial black holes are ruled out (as 100% of dark matter) by various observational bounds, and antimatter would be just as visible as normal m
45.
by snarkconjecture 3y ago
Momentum is just mv, not mv².
46.
by snarkconjecture 3y ago
Neither the OP nor the top answer on Reddit mentioned the Higgs boson. You're right, but I'm not sure who you're rebutting.
47.
by snarkconjecture 3y ago
General Relativity is a straightforward consequence of basically any form of string theory.
48.
by snarkconjecture 3y ago
> All of these terms, including the Anglo‐Saxon word “lifere,” seem to closely resemble the English verb “to live,” underscoring the relation of the liver to life in populations influenced by the Celtic culture. Except that "liver&q
49.
by snarkconjecture 3y ago
OP's code still only has log2(52!) different binary strings that can be encoded, but they vary in length from 52 to 1378 bits (and are the leaves of a binary tree). This is handy for easily encoding sequences drawn from a non-uniform d
50.
by snarkconjecture 3y ago
I have to admit I don't immediately see how that would work, since the proof uses properties of Penrose tilings other than aperiodicity, but if you flesh out the details I think it would be a great paper.
51.
by snarkconjecture 3y ago
Yup, way off base. There are many ways to construct an aperiodic set of points with algebraic coordinates, or even rational, or integer, coordinates. Penrose tilings have vertices with algebraic coordinates. The new aperiodic "hat&quot
52.
by snarkconjecture 3y ago
A decimal "point" is called that because it's written as a dot: . "Fixed point" arithmetic has nothing to do with "fixed point theorems", it's a name collision. Base ten has nothing to do with the di
53.
by snarkconjecture 3y ago
You're on the right track, especially with the last sentence. If reality had an infinite amount of detail (i.e. matter could be arbitrarily small), we could make storage media as dense as we liked by encoding ones and zeros as the pres
54.
by snarkconjecture 3y ago
As of right now, it seems to work for any song on Infinite Jukebox mode but the Autocanonizer gets stuck on loading for any song that isn't one of the presets.
55.
by snarkconjecture 3y ago
General relativity has no problem with dark energy or dark matter. Singularities, yes. And nonrenormalizability is an issue (with trying to make it quantum).
56.
by snarkconjecture 3y ago
Speaking as a physicist, I think you're basically on the right track! (But also, this is as much philosophy of math/science as it is physics, so I wouldn't quite call myself an authority on this.) I definitely think of probab
57.
by snarkconjecture 3y ago
"Good old-fashioned AI" (GOFAI) is a term of art that refers to symbolic AI, in contrast to deep NNs. Maybe we need to rename it if deep learning is already "old fashioned"! (EDIT: to be clear, I have no idea what TechCr
58.
by snarkconjecture 3y ago
I rather like this collection: https://namingschemes.com/Main_Page
59.
by snarkconjecture 3y ago
Nonstandard terminology warning: the author is using "autocorrelation" in a way I've never seen before. There is a much more common usage of "autocorrelation" to refer to the correlation of a timeseries with itself
60.
by snarkconjecture 3y ago
The great-grandparent comment was talking about an "information density limit" and black holes in our universe, so I assumed the referenced sci-fi collection had something to do with holography. I don't know of any particular

More ›