7 days 30 days All time Recent Popular
Hugh Everett's birthday! Pioneer of the Many-Worlds Interpretation of quantum mechanics. Let us celebrate by thinking about ontological extravagance. I will do so by way of analogy, because I have found that everyone loves analogies and nobody ever willfully misconstrues them.


We look at the night sky and see photons arriving to us, emitted by distant stars. Let's contrast two different theories about how stars emit photons.

One theory says, we know how stars shine, and our equations predict that they emit photons roughly uniformly in all directions. Call this the "Many-Photons Interpretation" (MPI).

But! Others object. That is *so many photons*. Most of which we don't observe, and can't observe, since they're moving away at the speed of light. It's too ontologically extravagant to posit a huge number of unobservable things!

So they suggest a "Photon Collapse Interpretation." According to this theory, the photons emitted toward us actually exist. But photons that would be emitted in directions we will never observe simply collapse into utter non-existence.
In the reductionistic approach that dominates science, we've tried to categorize even our own physiology into sperate systems such as the immune system or the metabolic system. A number of beautiful papers show that things are not so segmented as we might think. A thread.

1/

Already almost a decade ago, a brilliant paper in Nature showed that there is crosstalk between the gut microbiome, gut epithelial cells, and immune cells. Moreover, it showed that epithelial cells can take over the immune cell

Than there is this work of art:
https://t.co/O38Gm3P1Nu
The author argues that the immune and metabolic system are likely coevolved and demonstrates that cytokines in fact also act as metabolic hormones. This explains the low-grade inflammation associated with e.g. diabetes.

3/

A quote:
"The evolutionary advantages of a strong defence system
are obvious [...] As a strong immune response is dependent on energy sources, one can also argue that the integration of these systems and their cooperation [...] would be highly advantageous."

4/

"From this perspective, an intriguing way to think about this paradigm would be to envision immune mediators, such as cytokines,
as metabolic hormones. In fact, this aspect of immunometabolism is
extremely well-conserved among organisms"

5/
Folks asked about my reverse outline process so here's a thread..
Simple concept, go through each substantive chapter & log the topic of each paragraph in one line. I do this by hand on a legal pad, so the description has to be super brief. 1/
#SocAF #PhDChat #AcademicChatter


As I go, I write out the subheadings within the chapter with the title & a brief description of the content there (few words). I also note how many paragraphs of "set-up" are at the start of each chapter. 2/

For each paragraph, if it contains empirical data, I make a note of the case/example/quote..still only on a single line. This is indented under the paragraph topic line. For these lines, I wrote 'data' in the margin to flag where empirical data were included. 3/

I use post-it strips to flag things that I think of as I go...cite X or include Y example here or this needs to be fleshed out. 4/

Initially, this outline allows me to see where I'm light on data, when the set-up of sections isn't parallel (e.g. 3 paragraphs for one chapter and 5 for another), where I can include better examples, where my paragraphs are redundant or don't flow well one to the next. 5/
Ph.D. students: this holiday season, devote a few hours to reading Work Your Career by @JonathanMalloy and me. (Many libraries have it.) The book teaches you how to maximize your agency throughout your program.

@AcademicChatter #WorkYourCareer

As @JonathanMalloy and I argue in this @ConversationCA article, Ph.D. students can't wait for programs and universities to meet their professional development needs. While some offer great options, availability is uneven.

#AcademicTwitter

In #WorkYourCareer, we provide students with clear guidance on how to prepare for both academic & non-academic careers at every stage of their program. We outline our approach in the first chapter (available free online).

#AcademicTwitter #phdChat

In Chapter 2 of #WorkYourCareer, we walk you through questions to consider when applying to PhD programs - including whether to apply and if so, to which ones (free excerpt linked below).

#AcademicTwitter #phdChat
https://t.co/Mif6bTErgT
#AcademicTwitter #phdChat


Chapter 2 of #WorkYourCareer also includes our somewhat-controversial 'should I do a PhD?' flowchart. A PhD can be a great choice for many people - but it is a big life decision.

#AcademicTwitter #phdChat