New Theory Inspection: Is the Universe a Bubble? I had a look 

Sabine invented the paper reaction category 🤣

Second this! That is both fantastic and hilarious!

@@MrAlanCristhian Nah, that title goes to twominutepapers

@@sirlight-ljij He don't react to papers. He promote them and overhype them.

Review this: "But it doesn’t. If you calculate the expectation value of the angular momentum operator, then that will respect rotational symmetry, yes. But that’s because the eigenvalues, here comes the relevant part, take on both positive and negative values, so they can average to zero. The eigenvalues of the area operator in LQG, in contrast, are all positive valued and have a lower bound. Consequently, the expectation value for the area in loop quantum gravity is bounded from below. It can’t transform under the Lorentz-group. Mathematical fact. Of course Carlo knows this. Everyone who works on this stuff know this. They just repeat this angular momentum story because it sounds superficially plausible if you don’t know anything about quantum physics. Now you can say, alright, the area can’t transform under Lorentz-transformations. So maybe there’s some quantum stuff going on and weird things happen. Yeah, actually Carlo and Simone said that in their paper. And that’s also why some people in loop quantum gravity said there ought to be deviations from Lorentz invariance."

Damnit, I was juust about to write that!😂👍

My brain went straight to Monty Python, when I saw "Ni". 😛

We are now no longer the physicists Who Say 'Ni'! We are now the physicists Who Say 'Ecky-Ecky-Ecky-Ecky-Pikang-Zoom-Boing-Gumzowehzeh'

Will there be “a path”?

Forget strings and loops - the new model is *a shrubbery*

I guess there will be no shortage of resources.

Honestly I never thought I'd enjoy such a video before. But somehow experts tearing into amature's works covering their field is somehow enjoyable, regardless if the viewer has any familiarity with said field.

In the northern hemisphere it's now combustion season and burning paper is CO2 neutral, so there is that.

Yes, I loved that bit, but also glad it wasn’t my paper!

That office needs a shredder - much more efficient. It would also save on having to pick up lots of bits of paper. I expect it'd get a lot of use.

Also, diese Physiker bekommen den blauen Brief!

That must mean my English parents were secretly German. Mind you my next down sister and our brother and I were always in the top 3 or so in class. Our mother kept all our reports and reading them years later my sister and I couldnt understand why they would pick on the one vaguely negative remark, like Helena is often late, and hit the roof. My memories of end of term reports is all shouting and tears.

My mother was German also but my father who was Italian read the report card first. You either got good marks or a deal you couldn't refuse.

Sabine reminds me so much of my UK high school physics teacher. She would similarly pick up on unreferenced assumptions and unsupported hypothesis.

Inspired by John Campbell 😅

Indeed, very practical and informative.

Yeah, physicist always have a giant mirophone on their desk.

It is like the comedic version of reviewing papers.

Is prism?

Yes, absolutely. Do the new findings suggest that the Babylonians may have been right after all, that we are all suffering from "shell" shock? Or is Sabine taking us all for a ride? I wouldn't put it past her. Be this at it may, what I am really looking forward to is that one day all of us will have a choice which universe we would like to live in. Too many neutron stars make me nervous, honestly.

Mybe you should learn german

Let's also include some salami.

So if we conclude that the Universe is made of Swiss cheese, then Swiss dairy cows must be truly amazing. If only Douglas Adams were around to pick up that train of thought.

Actually if you zoom out enough the universe does resemble swiss cheese .

Aether Wind, wasn't that light Bries?

Well there's also the Raisin Bread analogy to explain the "Expanding Universe", but since you propose including Spanish Wine, I suppose we could include French Bagguetts (which cointain voids).

Ni is the authors name

This comment is more insightful than the whole paper.

@@A_Stereotypical_HereticHe knows that, it’s you who doesn’t get the joke… 😉

This paper is less than nickel. French speakers will hopefully get the pun.

Wow that's too harsh

yes learning about the Novium pen was by far the best bit

yes, but leaving aside that the cosmological application seems nonsense to me, the shell solution per se is interesting, maybe it comes in handy for something else (warp drives anyone?)

@@SabineHossenfelder Wow, I got one right. That was my thought of how this might be used. Then I thought, where do you get the energy?

@@msromike123 and negative mass?

@SabineHossenfleder - no matter how you slice it, this still makes good bedding for pet hamsters.

​@@SabineHossenfelder To be fair, if it wasn't for people thinking outside the box the sciences wouldn't be what they are today. Granted, that doesn't forgive some people for the aneurysm inducing crud they dump on the world. But it takes people introducing novel ideas, that often get built upon, to break us out of long held dogmas.

Are you kidding? I would love to have her grade a paper I wrote on RU-vid! Makes me want to publish my dark matter/energy theory just to see her destroy it 😂😂😂

it took much longer, but don't tell anyone (fell into a rabbit hole of papers about shell solutions)

@@SabineHossenfelder 😅

@@SabineHossenfelder that's sad, human time suppose to be valuables. At least we are leaving "like". At least some of us.

@@SabineHossenfelder I hope the video earns you enough to make it worthwhile! Science is in desperate need of people willing to do the dirty work to cut through all of the BS papers out there. Entropy has nothing on this nonsense!

@@SabineHossenfelderI like this public version of peer review. Let’s have more of this. Maybe the journals will notice.

In your defense, this is a much worse, "did you even look outside?!" 😂

How did this paper can be published dude😅

Yes lol ;) It is refreshing ....

It feels like reading an internet "discussion".

I should put this into my reviews...

@@SabineHossenfelder Oswald Teichmüller - was this not the 20 years old Student and Member of the SA, who in November 1933 mobbed Edmund Landau?

Big Pop

I had to record this a few times because I couldn't get the mic setup right. It still doesn't work properly but I gave up at some point. Next time will be better, I hope...

Or ice cold Vodka out of the freezer time! I am trying to not use carbs to improve my mood.

It’s never Starbucks time.

Which countries?

Except the assumption that this would be in some way testable in the next ten-thousand years...

Or, are the Knights who say Ni actually physicists from the middle ages? I have met faculty at universities with similar personalities.

You do realize she'll games are scams right? So the no solution thing is already true

What is MDPI?

@@MrDino1953 A very controversial publisher of many journals accused of very poor peer review process, Hence low quality. Generally all the big publishing companies target mostly profit, not quality, but MDPI seems to go over the top.

The journal itself is mediocre, but I know the chief editor and I had some faith in him, probably somewhat misplaced. That said, it gets easier to publish stuff like this once the first paper went through somewhere. Then all you need to do is refer to the earlier paper and hope the referees don't look at it.

The author is a librarian with a BSc in Biology. Maybe he was trying to troll the journal?

On the bright side, we learned something about how difficult it is to improve on LCDM.