Scott Dodelson @ScottDodelson

https://t.co/Zf0BjhYofu Opinions are mine, not my employer’s Fermilab University of Chicago Joined September 2024

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Scott Dodelson @ScottDodelson

2 months ago

The connection between supernovae and the world's first trillionaire ... or at least my pet peeve about how the media talks about the number trillion. scottdodelson.substack.com/p/supernovae?r…

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Scott Dodelson @ScottDodelson

2 months ago

is it only me or do they look alike?

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Scott Dodelson @ScottDodelson

3 months ago

open.substack.com/pub/scottdodel…

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In 1999 I co-authored a paper arguing that dark energy was required. Yet when I wrote a textbook a year later, I still treated ordinary CDM as the fiducial cosmological model. Why? Because changing your mind is harder than we like to admit.

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Scott Dodelson @ScottDodelson

3 months ago

The night sky looks black and white. It isn’t. Space speaks in many colors—most of which we can’t even see. And depending on which “color” you look at, you learn completely different things about the universe. scottdodelson.substack.com/p/the-color-of…

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Scott Dodelson @ScottDodelson

3 months ago

scottdodelson.substack.com/p/do-we-have-a…

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Scott Dodelson @ScottDodelson

3 months ago

Everyone uses ΛCDM but no one believes it.

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Scott Dodelson @ScottDodelson

3 months ago

70% of the universe is something we don’t understand. Our best theory gets its value wrong by a factor of 10¹²⁰. And yet we’ve learned to live with it. Why? scottdodelson.substack.com/p/cosmological…

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Scott Dodelson @ScottDodelson

4 months ago

@Physburgh great point. will post a follow-up addressing this. unless you object, i will mention that you are the one who pointed out my mistake

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Scott Dodelson @ScottDodelson

4 months ago

After COBE, cosmologists didn’t converge on ΛCDM. We converged on CDM—and knew it didn’t quite work. The rest was still up for grabs. A look back at how the fiducial cosmological model emerged ...

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Scott Dodelson @ScottDodelson

4 months ago

In 1992, cosmologists said they had “seen the face of God.” Why did the COBE discovery trigger language like that—and did modern cosmology begin that day? My latest: scottdodelson.substack.com/p/the-day-mode…

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Scott Dodelson @ScottDodelson

4 months ago

open.substack.com/pub/scottdodel…

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Scott Dodelson @ScottDodelson

4 months ago

How does an idea become accepted? Here's one example in the field of cosmology, where the idea of inflation took hold almost immediately. How did that happen?

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Scott Dodelson @ScottDodelson

5 months ago

Is there a word/emoji for that feeling you get when an agent keeps whirling around and telling you it will take a few seconds, won't respond concisely to simple questions, keeps running more code, and before you know it, the day is done, and your problem unsolved?

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Scott Dodelson @ScottDodelson

5 months ago

consider subscribing for free at scottdodelson.substack.com

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Scott Dodelson @ScottDodelson

5 months ago

"Cosmologists had audacity in the 1980’s. There were large conferences with names like “Inner Space/Outer Space” that argued for a deep connection between particle physics and cosmology... In retrospect, there were two problems with this picture."

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Scott Dodelson @ScottDodelson

5 months ago

... the introduction of a cosmological constant was not just the proposal that a specific model is correct. It was the fundamental belief that we are on to something, that our audacity to answer the most profound questions is warranted." scottdodelson.substack.com