Nearly 12 years later, revisiting the topic of my very first paper in the field of string theory: the Weak Gravity Conjecture for axions
https://t.co/wNcF4hpgub
Months ago I planned a trip to the @IFFmuseum in Ypres for this week. Who would have known that it would coincide perfectly with @TheRestHistory podcast series. Highly recommend both
Just released: my invited review article on the Weak Gravity Conjecture, aimed at advanced undergraduates/beginning grad students who are interested in string theory. I think it's relatively accessible to non-experts because my dad understood most of it:
https://t.co/4maX7dS6o3
@JosephPConlon “Non-perturbative” \neq gs > 1.
dS requires the breakdown of some perturbative expansion (perhaps gs, perhaps something else), and our understanding of such models is limited. “Non-perturbative” is the best I can do to describe that given the character limit on Twitter/X
We understand perturbative string theory well. In our universe, the correct theory of quantum gravity (call it string theory, if you want) is non-perturbative. We don't understand it very well yet.
If incomplete understanding=crisis, then every area of science is always in crisis
@JosephPConlon A de Sitter vacuum requires collusion of multiple terms in the potential, therefore not perturbative (at least, not in the strict sense of the term)
Congratulations @josh_dobbs1 on yesterday’s big win! Looks like you rock(et) on and off the field. We heard you’ve even got a new nickname, the "Passtronaut." If the suit fits, wear it.🚀
If free will and consciousness are illusions that emerge from deterministic laws of nature, it's pretty wild how much time we spend talking about them. Like somehow at eternity past the Wavefunction foresaw a species that would while away their days bickering about consciousness
Every semi-major result I've ever had in research, some people have told me that it's wrong, while others have told me that it's trivial.
For the young researchers out there: don't let the haters get you down
Fascinating study, but somewhat misleading marketing: religious attendance peaks in the middle class and dips among the rich & poor; religious attendance increases with increasing education, but most American adults don't have a bachelor's degree, so most churchgoers don't either
Religion in the United States has become a haven for those who have done everything "right"
College degree
Middle class income
Married
Children
That's the clear and unmistakable story from the data. And it's bad for democracy and religion.
https://t.co/NPAkRkPRvP
I came to faith in college, and Tim Keller was one of the most influential people in shaping my faith. Tim’s teaching helped me to appreciate the Gospel in new ways, and his life showed me what it meant to be a thoughtful, generous, convicted, and compassionate follower of Christ
Timothy J. Keller, husband, father, grandfather, mentor, friend, pastor, and scholar died this morning at home. Dad waited until he was alone with Mom. She kissed him on the forehead and he breathed his last breath. We take comfort in some of his last words...