Py-o7

6 ms·

1.
by Py-o7 4y ago
BRK salary is 100k; the corp pays for the private jet ("the Indefensible"). Aside from Berkshire, he also has a personal stock portfolio worth 9 digits or so [in essence due to investment work prior to Berkshire]. He is able to
2.
by Py-o7 4y ago
Yea. Most of the media reporting on Buffett is... sloppy to put it politely. The guy lives with Astrid (and some body guards) in a 5 bed house that he sentimentally likes. He also has a couple nice houses in CA (and possibly other states
3.
by Py-o7 4y ago
if you read Johnson's work, it's typically both. Direct fructose consumption as well as the polyol pathway being on and your body converting 'extra' glucose into fructose. excess fructose (in particular in ultra-process
4.
by Py-o7 4y ago
It seems misleading to call this "symmetry" because what you wrote is not a group. The only idempotent element in a group is the identity. And in abelian groups where the binary operation is given by "+" the identity is
5.
by Py-o7 4y ago
and you can actually use up all the various desaturase and elongase enzymes in the process so that 10% upper bound drops markedly as you consume more ALA. Put differently long chain n-3's production definitely isn't linearly depe
6.
by Py-o7 4y ago
+1 for Bruce Ames. This idea profoundly shaped my thinking a few years ago. The one nit is I'm not sure how we'd go about testing it.
7.
by Py-o7 4y ago
Steele's The Cauchy-Schwarz Masterclass is actually quite good and seemingly designed for self study. (A lingering result of this book is I heavily use inequalities even outside of analysis.) Artin's Algebra probably has had t
8.
by Py-o7 4y ago
It's interesting. My first instinct was to disagree with this post, but on reflection I think I mostly agree with it. A couple useful mental models are (i) deliberate practice and (ii) train-validation-test(/out of sample) sets
9.
by Py-o7 4y ago
My understanding of one guess around e.g. annual flu shots is not so much protection from infection as frequent stimulation of the immune system being beneficial in particular for Apoe4 carriers. E.g. from p. 329 of Lieberman's Exer
10.
by Py-o7 4y ago
Meat substitutes are ultra processed foods. No real surprises here.
11.
by Py-o7 4y ago
Kahneman's Thinking Fast and Slow (excluding all the priming stuff) Cialdini's Influence Lewis Caroll Epstein is a very talented writer
12.
by Py-o7 4y ago
The author is a professor of engineering. A more accurate title would be "I Rewired My Brain to Become Fluent in Math Calculations ."
13.
by Py-o7 4y ago
What is Mathematics by Courant and Robbins is surprisingly good. For something a little more specific Pinter's A Book of Abstract Algebra would fit the bill.
14.
by Py-o7 4y ago
> Do round numbers to the nearest whole number [and do not use decimals unless it's money] is very bad advice and may lead to all kinds of inappropriate rounding. Trying to find an additional representation (possibly visually) with
15.
by Py-o7 4y ago
There's a lot of literature on various kinds of cardio (esp HIIT and 'zone 2') and lactate production -> BDNF which is loosely understood to be very important for your brain. Some more recent stuff on myokine release (from
16.
by Py-o7 4y ago
Most people should pay extra attention to #7. E.g. Goodfellow et al did even worse than this sin in the Deep Learning book when they claimed the condition number for a square (but not necessarily normal) matrix is defined in terms of eigenv
17.
by Py-o7 4y ago
I'd encourage people to actually read the above link. It is very early days and quite far from definitive, but an encouraging attempt that's of special interest for people who are APOE-4 positive and/or have a family history
18.
by Py-o7 4y ago
This. I eat tuna at most once a month. You also excrete a lot of metals via vigorous sweating (as well as urine and stool). All the more reason to do sustained cardio (or sauna) plus drink lots of water and eat lots of fibrous food. I.e.
19.
by Py-o7 4y ago
I was at a talk featuring Richard Thaler a few years ago, and someone in the audience asked a question in a vein that runs through the comments here -- 'is it better to teach high school students stats or calc'? Thaler's resp
20.
by Py-o7 4y ago
a more persuasive theory imo is that yo-yo dieters that don't do serrious resistance training, have repeated cycles of sarcopenia and osteopenia -- i.e. lose 'good stuff' along with fat on the diet phase and gain back disprop
21.
by Py-o7 4y ago
Of course the article hits on correlation vs causation and gets comments from a body image coach but the author does not talk to anyone doing research on the role of adipokines in diseases of chronic low grade inflammation which are ubiquit
22.
by Py-o7 4y ago
My understanding is Buettner is a story teller who doesn't know much about science. His 'findings' are then often portrayed as having some scientific basis but really are much more comparable to 'case studies' in b
23.
by Py-o7 4y ago
If people want to know about financial crime (and regulatory dysfunction) in the US, I absolutely second Markopolos's book with no caveats. It's a bit technical but deserves to be more widely read. I typically recommend Browder&#x
24.
by Py-o7 4y ago
> The probability that Elon is margin called by year end is roughly 40% according to option prices. The way tycoons frequently do this involves putting collars around a significant portion of the margined stock (and for a sizable positio
25.
by Py-o7 4y ago
unfortunately the authors decided to use nonstandard definitions which really muddies the waters. E.g. they say > This dietary pattern is rich in fat from vegetable oils (especially virgin olive oil) Yet it is widely understood that oli
26.
by Py-o7 4y ago
Sardines, mackerel, oysters, mussels and sea vegetables... this sounds a lot like me, except I also eat salmon regularly. My understanding is tuna, especially the premium kinds like blue fin that show up in sushi, is loaded with mercury, PC
27.
by Py-o7 5y ago
What I had in mind was something more or less in line with https://math.mit.edu/academics/undergrad/major/course18/pure... though I am a little surprised that they have 1 course of differential equati
28.
by Py-o7 5y ago
You can get blood tests for $50 (and indeed <$40 with sales/discounts) around much of the world, e.g. from OmegaQuant. Once every 6 months instead of once every 2 months is fine for most when doing initial calibration.
29.
by Py-o7 5y ago
This felt like it was written by a physicist or engineer. Too much emphasis on differential equations and not enough on things like topology, functional analysis and/or non-introductory parts of algebra like say representation theory.
30.
by Py-o7 5y ago
For many years MIT students would go from Strang in year 1 to Artin in year 2. Artin != D&F of course though many would say it does less hand holding than D&F

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