Pure mathematics has all sorts of unexpected connections to other fields, and chemistry is no exception.

Apologies for the long hiatus: we've had some health issues in the family, and startup life has been particularly overwhelming. With any luck, I'll be able to return to a more regular posting frequency soon. What’s the right relationship between theory, computation, and experiment? Much has been written on this.

In Wednesday’s post, I wrote that “traditional physical organic chemistry is barely practiced today,” which attracted some controversy on X. Here are some responses: “POC has evolved in many directions and its concepts are widely used, e.g., in host-guest chem, org syn, materials sci, drug discovery.” - Bill Jorgensen “There is still a lot of absolutely gorgeous classical phys org done with organometallic and enzymatic reactions.

In this post, I’m trying something new and embedding calculations on Rowan alongside the text. You can view the structures and energies right in the page, or you can follow a link and view the full data in a new tab.

(Previously: 2022) #1. Tony Fadell, Build #2. Giff Constable, Talking To Humans #3. Ben Horowitz, The Hard Thing About Doing Hard Things #4. Dale Carnegie, How To Win Friends And Influence People Sounds Machiavellian, but actually quite wholesome: a “dad book,” as my friend

“And I took the little scroll from the hand of the angel and ate it. It was sweet as honey in my mouth, but when I had eaten it my stomach was made bitter.” –Revelation 10:10 As machine learning becomes more and more important to chemistry, it’s worth reflecting on Richard Sutton’s 2019 blog post about the “bitter lesson.” In this now-famous post, Sutton argues that “the biggest lesson that can be read from 70 years of AI research is that

I took a pistol course in undergrad, and while I was a poor marksman I enjoyed the experience. In particular, I was surprised by how meditative the act of shooting was. As our instructor explained, much of good shooting comes down to not doing anything when you pull the trigger.

“Like arrows in the hand of a warrior are the children of one's youth.” –Psalm 127:4 What if our most fundamental assumptions about parenting were wrong? That’s the question that Michaeleen Doucleff’s 2021 book Hunt, Gather, Parent tries to tackle.

Quantum computing gets a lot of attention these days. In this post, I want to examine the application of quantum computing to quantum chemistry, with a focus on determining whether there are any business-viable applications today.

In the course of preparing a literature meeting on post-Hartree–Fock computational methods last year, I found myself wishing that there was a quick and simple way to illustrate the relative error of different approximations on some familiar model reactions, like a "report card" for different levels of theory.