pdonis

51 ms·

871.
by pdonis 2y ago
> it’s the lifecycle of all scientific theories that they’re used for as long as they make accurate predictions, then we start seeing things they mis-predict, then they’re revised or replaced. No, that's not what always happens wi
872.
by pdonis 2y ago
> That’s just redshift. No, it isn't. I explicitly described two other direct observations that are not redshift. > when people say redshift evidence they mean the relationship between redshift and brightness of a standard c
873.
by pdonis 2y ago
> I have no obligation to tailor my comment for each and every reader You weren't responding to "each and every reader", you were responding to me. Your "figure of speech" was not justified when responding to m
874.
by pdonis 2y ago
> Your thoughts do not match what’s on the ground. > China is not currently sponsoring a state sponsored act of genocide. > China has an incentive to NOT do this. Their economy thrives on a global strong middle class that can
875.
by pdonis 2y ago
> What are those other observations that point to expansion? The apparent brightness and apparent angular size of distant galaxies, and more importantly, the relationship between the three observables of redshift, apparent brightness
876.
by pdonis 2y ago
> Surely there are infinite other possible explanations If you think there are others, please exhibit one. > Probably what you meant is that the expanding universe theory is the simplest of them all and creates less problems then o
877.
by pdonis 2y ago
> To be fair we do already know that energy is not globally conserved over cosmological timescales. No, what we know is that there is no invariant global concept of "energy" at all except in a special class of spacetimes (the
878.
by pdonis 2y ago
> our cosmic distance ladder calculations seem to have been very good Not according to at least one research group described in the article: the Freedman group, which is only getting the higher answer using Cepheids, but gets a lower a
879.
by pdonis 2y ago
> doesn't that imply that all that matter affected its surroundings gravitationally? It did; it caused the expansion to decelerate. That was true until a few billion years ago, when the matter density became smaller than the dark
880.
by pdonis 2y ago
> There is at least one known mechanism that cause Doppler WITHOUT moving: when the observer is in a gravity well This is gravitational redshift, not Doppler shift. Doppler shift specifically means redshift due to an object moving aw
881.
by pdonis 2y ago
> The only known X that’s ever been discovered that can encompass all aspects of that Y at all energy levels is string theory. This is not correct; string theory is not the only candidate we have for a theory of quantum gravity.
882.
by pdonis 2y ago
> In the absence of evidence that something else is causing the redshift, the assumption should be that it is a result of things moving away from us. But that is not what our best current model of the universe actually says. Our best
883.
by pdonis 2y ago
> This would reproduce the observed redshifts, but it has issues predicting pretty much every other cosmological observation. Not to mention contradicting the laws of conservation of energy and momentum.
884.
by pdonis 2y ago
> What if the universe doesn't expand at all? Not possible. Redshift is not the only observation we have. The totality of all the observations we have cannot be explained in any other way than an expanding universe. > How can
885.
by pdonis 2y ago
> stereotypical upper middle class American Not sure where you're getting that from since the only claim I have made about the US (by implication) is that I think China is worse.
886.
by pdonis 2y ago
> Intended meaning was neither the US nor China nor Russia make just and good rulers I already got that that was your intended meaning. I was asking who you think do make just and good rulers. Apparently your answer is "Muslims&
887.
by pdonis 2y ago
> it’s about how just and fit to rule is the guy with the longest stick. And again, if the choices are the US or China, why would you consider China to be more "just and fit to rule"? > your garden in Virginia I don&#x
888.
by pdonis 2y ago
> America also becomes less of a military powerhouse. Something that I’m genuinely happy about Why so? Sure, it would be a nice world if no country was a military powerhouse, but that's not the world we live in. If the choice is b
889.
by pdonis 2y ago
> A cost centre is, by definition, somewhere that only produces costs and is never attributed with any revenue or profit. Which means that if investing in IT is an enabler for gaining revenue or profit, it's not a cost center by t
890.
by pdonis 2y ago
> company makes money in logistics and as a software dev I would be second class citizen and cost center If software can make the company provide better logistics more efficiently, it's not a cost center, it's an enabler. It
891.
by pdonis 2y ago
> Congress passed laws granting those executive departments some latitude on what it is they are allowed to enforce No, the current administrative state goes far beyond that. Executive branch agencies are writing "regulations&quot
892.
by pdonis 2y ago
> Congress and the Constitution give wide latitude to the executive branch to administer laws. Depends on what you mean by "wide latitude". Article II says that the President shall take care that the laws are faithfully execu
893.
by pdonis 2y ago
> Existing ship mounted railguns already shoot projectiles around 3km/s. Projectiles of what mass? And with what acceleration? As I understand it, with feasible railgun lengths the acceleration is well above the limit of human tol
894.
by pdonis 2y ago
> If a right to privacy doesn't exist because it's not explicitly spelled out, and "secure in their persons, houses, papers, and effects" gets shaved so thin you can see through it I'm not sure how this relates
895.
by pdonis 2y ago
> amending the Constitution, which neither is, nor should be, the only way to effect change Sure, if you can "effect change" by following the processes described in the Constitution as it is, you don't have to amend it.
896.
by pdonis 2y ago
> thats what the railgun is for A railgun that can provide a delta-v of 8 kilometers per second?
897.
by pdonis 2y ago
The main cost of getting to low Earth orbit isn't gaining altitude, it's gaining speed. Even if you could levitate a spacecraft to, say, 200 km altitude at zero cost in energy, you would still need about 97% of the energy to get i
898.
by pdonis 2y ago
> Where is this said in the constitution ? "Protect everyone's basic rights and make sure there is a level playing field" is mainly in the Bill of Rights. (Some aspects of it are in the original Constitution.) "Stop
899.
by pdonis 2y ago
> Which is a consequence of the gravitational pressure, no? Not just gravity alone, no. (And "gravitational pressure" is not a good description of gravity's effect.) Gravity plus the fact that the object does not have a
900.
by pdonis 2y ago
> Here’s one about bills passed Judging a legislature by how many bills it passes is like judging programming productivity by lines of code produced, and has the same issue that Edsger Dijkstra identified with the latter: it should be

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