https://xitter.cf/t.co/Zf0BjhYofu Opinions are mine, not my employer’s

Fermilab University of Chicago
Joined September 2024
A proposal for an updated Turing test
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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…
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is it only me or do they look alike?
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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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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…
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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…
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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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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…
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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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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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"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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"30 years ago when a cosmological constant was invoked to resolve a different set of tensions: I thought it was unserious. But I was wrong...
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... 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/
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