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RoDeltaR t1_jadmdzy wrote

Both Sabine Hossenfelder and Dr. Becky (if anyone cares) are not buying into this.

Please remember that this is only a proposal with a lot of assumptions, and it hasn't been proven.

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macbowes t1_jadrzqy wrote

Yes! Thank you for sharing this information. The authors of the two papers that have led to this recent news story do not address the question of how black holes, which are made of matter that constitutes a small fraction of 4.6% of all the energy in the universe, are responsible for dark energy, when dark energy comprises 70%~ of all the energy in the universe.

[Dr. Sabine Hossenfelder on this issue.] (https://youtu.be/ENGJA1cUe3M)

Dr. Becky Smethurst on this issue.

An interview with one of the lead authors is available here.

They claim that the reason we see a smooth distribution of dark energy throughout spacetime, despite the supposed source (black holes) obviously not being smoothly distributed throughout spacetime, is because of relativistic effects. Intuitively, one would expect the areas near black holes to be expanding faster than areas far away from black holes, if the cause of expansion was the black holes themselves.

Seems unlikely to me. I am hoping that Dr. Matt O'Dowd of PBS SpaceTime also addresses the topic.

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antiquemule t1_jaeipty wrote

Well, it is actually "Dr. Becky's" professional speciality, and she is currently a research fellow at Oxford University, so I think she is worth listening to.

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thetomahawk42 t1_jaf0pe6 wrote

You don't need the quotes around her name.

It's actually her name and correct title.

The quotes give an air-quotes sarcastic feel, which I don't think you intend.

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Ill-Manufacturer8654 t1_jaf3vqg wrote

The correct title would be: Dr. Smethurst.

"Dr. Becky" is a light hearted informal youtube name and I think the quotes are valid. It's got a "Dr. Nick!" quality too it.

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EricPostpischil t1_jaf3wnb wrote

I think the quotes were to point out the previous commenter’s use of Dr. Smethurst’s first name in that way could be considered diminutive. Unless Dr. Smethurst prefers to be known as Dr. Becky or the commenter has a personal relationship justifying the familiarity, it may be impolite to use “Dr. Becky.” If she does use that form, antiquemule may have been unaware of it or may consider it impolite nonetheless.

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SymWizard07 t1_jaethxa wrote

I’ve seen a lot of Hossenfelder on YT lately, and can definitely say that she’s my favorite scientist on the internet. No sensationalist BS.

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slackforce t1_jaew584 wrote

Yeah she's popped up a bunch on my feed as well. Her and an Australian guy from a PBS channel I think. Both are great.

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Fortune090 t1_jaf254x wrote

Matt O'Dowd! Absolute treasure. PBS Space Time is incredible too.

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