MigL

So ALL cops are guilty of this "disdain for certain groups", not just the ones who are racist, white supremacist, or just a*sholes. And 'screening' those out would make no difference whatsoever. That's almost like the systemic laziness of Mexicans. Or the systemic Mafia association of Italians. Or the systemic irresponsibility of Black American fathers. There is a word for those who generalize about groups of people. The word is 'notmakingavalidargument'. ( what did you think I was gonna say ? )

Not worth the effort. One of the other properties of gold is that ,as a coating, it can be extremely thin.

I would have said … https://www.urbandictionary.com/define.php?term=Pot Calling the Kettle Black

None, as far as I know. Although the Japanese people may have a problem with the Marines' statue. So I still don't understand your point. ( I'm slow, you're gonna have to spoon-feed it to me )

You are playing a game, and you think that since there are winner, and losers, that game is inherently unfair ??? Who ever said it needs to be fair? If life had been possible during the hot dense state of the initial universe, they may have skipped Newtonian and GR gravity and gone straight to Quantum Gravity, as observational evidence, at that time, would have led to it. And they might have the equivalent of Maxwell's equations for the Electroweak force. They would never know ( until much later if they survived the symmetry break ) about the Weak Nuclear and the Electromagnetic forces. Maybe you think we should be complaining about how unfair it is for us ???

No. I would say people without power don't get monuments. Plenty of monuments for poor people. Jesus, St Francis of Assisi, Gandhi, the three Marines raising the flag on Iwo Jima, etc.

Are you saying what D Chauvin did, wasn't criminal ??? Tell that to the cops in Atlanta at the Wendy's drive-through. They were firedupon by their own taser, shot the suspect, and are now being charged. Stop bailing straw, and rebut the argument being made. Well, it certainly cleared that factor, in my mind. Sure. Or if the union is too strong and protects the bad cops. Or, even if there is no psychological assessment after the violent behaviour. See, I can do that too. Rebut ( or even dismiss ) individual sentences, instead of the whole opinion. We seem to agree, though, that the system, especially in the US, is failing, and people are suffering for it.

Your whole post. Please elaborate.

you're gonna have to elaborate, Dim. ( do you have an aversion to typing full sentnces and ideas )

No one who is that arrogant and so sure of himself, that he would kneel on a person's neck for 4 minutes AFTER that person had died, would be able to pass a psychological screening, and subsequent re-assessments after his numerous 'excessive force' incidents. How long was this guy's assessment before he became a police officer ? How long was his training before they handed him a gun, and a position of authority ? Why did the police union allow this guy to keep his job after so many incidents ? And no, I'm not trying to 'spread' the blame, D Chauvin is responsible for his own actions. ( You should know that I'm a believer in personal responsibility, by now ) But the system is failing all of us, not just Black Americans; they are, however, the ones who suffer most from it.

Well, since we are sharing perspectives, this is my opinion on the matter. Removing monuments which are offensive to our modern sensibilities ( yes, history is VERY offensive ), is about as effective in combatting/mediating racism, as tweeting their support for a cause is for the hash-tag generation. IOW, next to useless.

Leaving the Big Bang singularity aside, and considering Black Holes for the moment. Wiki has this to say about Einstein-Cartan geometries "According to general relativity, the gravitational collapse of a sufficiently compact mass forms a singular black hole. In the Einstein–Cartan theory, instead, the collapse reaches a bounce and forms a regular Einstein–Rosen bridge (wormhole) to a new, growing universe on the other side of the event horizon." From https://en.wikipedia.org/wiki/Einstein–Cartan_theory I have always thought universes growing out of a wormhole, or white hole, did not fit observational evidence. X-posted with Mordred

Sure. Let's apply that to all criminal activity. You steal a loaf of bread because you're hungry, zero tolerance, you go to jail. You've been oppressed for a couple of hundred years and you cause some damage while protesting, zero tolerance, you go to jail. Someone is trying to kill you and instead of just disabling them, you use excessive force and kill them, zero tolerance, you go too jail. Or is zero tolerance only applicable to the 'causes' you deem important ? If you mean he didn't use a gun, but his knee instead, I would think that if a jackass who displays such disregard for human life, had been 'screened out' and never become a police officer, G Floyd might still be alive. Or even if D Chauvin had been re-evaluated after any of his many previous excessive force complaints.

I thought you were gonna say all those who don't want one, get shot. Watched an old movie, that I hadn't watched for quite some time, again last night. In the Heat of the Night with Sydney Poitier and Rod Steiger; Great movie, and appropriate to this discussion. Makes you realize how far we've come, and how far we still need to go

I don't know what the procedure is in the US, but in Canada, a cop is given a thorough background check ( including family members ) and a psychological screening, in an attempt to weed out the nutcases before handing them a gun. Then again, it seems you guys will give a gun to anyone who wants one ( as per your Constitution )

You mean a system that doesn't screen police officers for white supremacist or racist beliefs before handing them a gun ?

Yes, I may have suspected he was a white supremacist. Whose doubts are you questioning ? Of course motivation matters. How do you stop a problem from reoccurring unless you understand its origins.

I gave a fairly clear explanation of how greenhouse gases work. But you totally ignored my reply... I tried to engage in an informative discussion; no-one else seems to be willing.

It was a statement, not a rebuttal to any allegations. Make a difference to what ?

Did not know this... https://www.msn.com/en-ca/news/us/backlash-against-asian-american-woman-married-to-ex-cop-in-george-floyd-case-reveals-disturbing-truth/ar-BB15PqZJ?ocid=msedgntp Turns out D Chauvin's ( G Floyd's killer ) was an Oriental refugee, previously in an abusive arranged marriage. That could still mean D Chauvin is racist with regard to Black Americans, or possibly just an idiot, but would cast doubts on his being a 'white supremacist'.

Air travel has been even more impacted by Covid-19. I wish we had a better ( cheaper ? ) rail system in North America, similar to European systems. I love taking the train in Europe.

If you understood the way 'greenhouse' gases work you'd know why this is. Temperatures during daytime are primarily due to radiation from the Sun, at a characteristic 'black body' ( temp of approx. 4000 deg ) frequency/wavelength such that only a minute portion of the energy is in the proper range to excite the CO2 intermolecular bonds. Night-time or low sunlight temperatures are more affected by re-radiation of heat by the Earth, at a much lower 'black body' temperature ( 20 deg ), so it is mostly in the infrared/microwave range, easily absorbed by CO2 ( and water vapor ), and a large portion of it is re-re-radiated back towards the Earth. IOW, Heat accumulated during the day, Cannot be fully re-radiated at night, and average temps increase. There is absolutely no question regarding the science of GH gases.

I am aware that Einstein-Cartan torsion, to accommodate intrinsic angular momentum, the modified Dirac equation then implies fermions have 'spatial extension'. This means that BHs smaller than 10^16 kg are not possible, and the energy required to produce such a BH, is 39 orders of magnitude greater than available at the LHC ( see my post in this thread, on June 15, 1st page ). But Einstein-Cartan GR, while it seems to be the right path forward, does have some difficulties and is awaiting observational evidence, as opposed to 'regular' GR, sans torsion ( torsion 'walls' and rotating universe; Mordred may have more info regarding observations ) I'm also aware that electron degeneracy ( Pauli exclusion ) stops further collapse in a white dwarf star, and neutron degeneracy stops further collapse in a neutron star. But, what exactly, would be the mechanism in Einstein-Cartan GR that stops gravitational collapse of a BH to a singular point ? Just the fact that E-C GR doesn't support singularities, doesn't really clarify the matter

He might mean 'Quantum Gravity' … "is anticipated to resolve any mathematical singularity issues at the center of black holes"

One or two centuries BC, a vast store house of information, hoarded by Ptolemaic kings, supposedly burned to the ground **. This accumulated ancient knowledge was lost for over a thousand years, due to an accident of nature, and only began rediscovery during the Renaissance, 1500 years later. Was that nature being unfair ? Knowledge is conclusions drawn from observational evidence. If one type of evidence is unavailable, you look for another, or you make do without. In the 'Krauss' future, there may be no more distant receding galaxies, but every once in a while, one of the galaxies in our local group ( or even individual stars ) will wander far enough to lose gravitational cohesion and will experience expansion. It will certainly be harder to formulate a Big Bang model, but it will be possible. **The Library of Alexandria didn't actually burn to the ground, that is a myth. It actually started declining with a purge of intellectuals about the 1st century BC.