Sean Carroll (@seanmcarroll) / X

Sean Carroll

24.9K posts

Sean Carroll

@seanmcarroll

Physics, philosophy, complexity. @JohnsHopkins & @SFIscience. Host, #MindscapePodcast. Married to @JenLucPiquant. Increasingly at Bluesky rather than here.

preposterousuniverse.com

Joined February 2009

Pinned
Sean Carroll
@seanmcarroll
Mar 10, 2025
Most of my social-media activity is elsewhere, but I've been hanging around X to advertise the podcast and occasionally make a political point. But it's become too unpleasant, I have better ways to spend my time. And ultimately I do agree with this sentiment.
73K
Sean Carroll
@seanmcarroll
Nov 5, 2020
If you think we only have so many covid cases because we do so much testing, it makes sense you would think you’re only losing the election because they keep counting votes.
Sean Carroll
@seanmcarroll
Mar 14, 2018
Stephen Hawking was the rare famous scientist who deserved every bit of his fame. A brilliant physicist and an inspirational person. And quite a character.
BBC Breaking News
@BBCBreaking
Mar 14, 2018
Physicist Stephen Hawking has died at the age of 76, a spokesman for his family has said bbc.in/2GpapQF
Sean Carroll
@seanmcarroll
Nov 9, 2016
So sad about what's happening. I thought our country was better than this. We're rejecting a smart hard-working woman in favor of a buffoon.
Sean Carroll
@seanmcarroll
Oct 6, 2020
Roger Penrose won the Nobel Prize for showing that black holes are an almost-unavoidable prediction of classical general relativity. Let's take a peek into what that entailed. 1/n
Sean Carroll
@seanmcarroll
Sep 17, 2020
My productivity algorithm is something like: * Start to do something * Remember higher-priority thing, switch to doing that * Remember that high-priority thing is hard * Do nothing
Sean Carroll
@seanmcarroll
Dec 17, 2018
Women astronomers have had lower success rates with proposals to use the Hubble Space Telescope. Until they finally tried blind reviewing (so reviewers didn’t know the identity of the proposers), and the discrepancy went away. H/t @welt_woman
Alex Amon
@astroalexamon
Dec 17, 2018
@HubbleTelescope has, for the first time, conducted a completely blind review of telescope proposals- hooray!! The result - completely consistent success rates for men and women, in contrast to significant biases that they found in the past. stsci.edu/news/newslette…
Sean Carroll
@seanmcarroll
Nov 14, 2022
Actual science would like a word.
Colin Wright
@SwipeWright
Nov 13, 2022
Biological sex is real, immutable, and binary.
Sean Carroll
@seanmcarroll
Jan 22, 2021
Someone had to do it. I’m not proud or anything.
Sean Carroll
@seanmcarroll
Aug 1, 2021
Sometimes I am reading about an interesting mathematical topic and my brain is exploding with the pleasure of new ideas, then I am confronted with the fact that I still can’t remember which is “concave” and which is “convex” and I am sad.
Sean Carroll
@seanmcarroll
Sep 30, 2022
It’s strange when a character in a fantasy story is all “I am a scientist! I do not believe in magic and spirits!” while evidence for magic and spirits is everywhere around them. Science is founded on empiricism. Physicalism is a conclusion we reach, not a presupposition.
Sean Carroll
@seanmcarroll
Oct 25, 2020
How it started How it’s going
Sean Carroll
@seanmcarroll
May 6, 2021
Always a pleasure when someone tells me "I used your textbook to learn general relativity, it was great," followed immediately thereafter by "I didn't realize you were still alive."
Sean Carroll
@seanmcarroll
Oct 2, 2018
I love my fellow physicists, and it breaks my heart that so many have convinced themselves it's "scientific" to ignore mountains of evidence establishing that women face real, systematic discrimination in our field.