jchallis

7 ms·

31.
by jchallis 3y ago
It's incredibly humbling to think that his #2 and #3 life achievements were building practical high field superconducting magnets (making MRI machines possible a decade later) and being CEO of AT&T.
32.
by jchallis 3y ago
Should generate the same figures in the space domain up to constant factors of 2 pi.
33.
by jchallis 3y ago
Both Maya and the Three and Elena of Avalor had long subplots on Aztec, Maya and Inca characters (human and god).
34.
by jchallis 4y ago
By any chance is your root email address similar to the one you use for your regular Amazon life (kindle / shopping / prime) etc? You should be able to log in using that root account using your usual Amazon email and then proceed
35.
by jchallis 4y ago
Shigeru Mizuki’s masterful Showa series covers the essential period from the Great Kanto Earthquake in 1923 to the top of the economic bubble in 1989. While not the full story, it’s an excellent and approachable beginning.
36.
by jchallis 4y ago
Some things I’d do again: The amount of work in your life has now more than effectively doubled- find ways to remove load as quickly as possible . There are laundry, cleaning , food services etc and you should use them to the point of feeli
37.
by jchallis 4y ago
For context on coauthors , Janet Yellen is the former Fed chair. George Akerlof is a Nobel Prize winning economist and Yellen’s husband. They have one son, who is also an economist.
38.
by jchallis 4y ago
The Khan Academy Kids app is really well balanced - a logic exercise followed by a book about dump trucks, a counting game followed by a singalong. It worked for my 4 year old. If you see some particular math/ science engagement I’ve f
39.
by jchallis 4y ago
Jinyoung Park's Path to Math video on IAS is a really wonderful 3 minute story of how she came to study threshold behavior in random discrete structures, just like this work. Highly recommended. https://www.ias.edu/idea
40.
by jchallis 4y ago
I use a regret minimization framework: which choice will I regret most if I don't do it? Some choices I've made are definitely life altering: getting married in my early 20s, moving far away from family. Some choices that seemed l
41.
by jchallis 4y ago
The only proven way is to speak regularly with native speakers. Standard approach is find a native speaker tutoring application like Preply. Pro approach is to get an English speaking significant other and kick into high gear. My 79 year ol
42.
by jchallis 5y ago
Just a message from someone who faced a nearly identical choice 20 years ago: 1) Whatever you choose, you will likely have a good education and a great career. Celebrate this. 2) You are much more likely to regret turning down MIT than ta
43.
by jchallis 5y ago
My children are sufficiently distinct as to need different answers. Key feedback: parents often don’t choose same approach for different kids.
44.
by jchallis 5y ago
I'm a pretty solid 1-2 hours per day. This increased a lot after I had children and needed a healthy outlet. Some things to consider: - Audiobooks were pretty transformative for me. I like to run and I like to read and listening to an
45.
by jchallis 5y ago
Developmental disability != mental illness
46.
by jchallis 5y ago
That’s a delightfully wholesome joke.
47.
by jchallis 5y ago
The Jordan-Brouwer Separation Theorem - which rigorously defines an inside and outside for higher dimensional objects. http://www.math.uchicago.edu/~may/VIGRE/VIGRE2009/REUPapers/...
48.
by jchallis 5y ago
Perhaps the Samwer brothers and Rocket Internet. For those unfamiliar with the story (and which might be very useful thinking for enterprising folks in Nigeria): https://www.wired.co.uk/article/inside-the-clone-factory
49.
by jchallis 5y ago
I remember bringing up the racist parts of Gone with the Wind with my parents and having an extremely illuminating conversation on their thoughts and attitudes.
50.
by jchallis 5y ago
I grew up in the twilight of the Cold War and there was definitely a lot of side eye thrown at socialists, labor agitators and pacifists of all kinds. I did have one teacher who proudly shared Helen Keller’s letter to the students who burne
51.
by jchallis 5y ago
There’s a meme about the United States that though we are often portrayed as fat and stupid, we do seem to win a large number of international science and sports prizes in absolute terms. This table is a good reminder that a lot of the US’
52.
by jchallis 5y ago
There was a vintage Wendy's ad in the 1980s that spoofed just this lack of "fashion" sense. https://www.youtube.com/watch?v=5CaMUfxVJVQ
53.
by jchallis 5y ago
Hi Ahmed - I'm a very heavy user of YourMechanic in the US. One of the biggest benefits I've heard for mechanics is that without the overhead of a garage they can run their own operations much more profitably. Being able to recrui
54.
by jchallis 5y ago
Hi Tejas - I hope you are very successful in this venture. I can offer a potentially helpful data point. I was on a flight once next to a gentleman who was quite high in his local LDS church (not bishop but next level down?). He railed agai
55.
by jchallis 5y ago
I could get Radio Havana’s English language service on my shortwave during the early aughts. I was quite deep into the central US.
56.
by jchallis 5y ago
Speaking from someone who knows - your mom wouldn’t want this choice to haunt you and would want you to find peace.
57.
by jchallis 5y ago
GOAT Of All Time We need something suitably recursive for Hoare.
58.
by jchallis 5y ago
“And the band played on” is a wonderful discussion of the AIDS epidemic in the Reagan years. Unlike many health crises, this is one that occurred in living memory and where we have the hindsight to assess the trade offs and mania.
59.
by jchallis 5y ago
Private schools in the Bay Area quickly adapted to the situation and stayed open, while even the wealthiest district public schools took a long time to follow. My two cents: school boards were much, much slower to adapt lessons from elsewhe
60.
by jchallis 5y ago
Hi Throwaway - sounds like Bright Horizons at Genentech? My 3 year old was at Bright Horizons at UCSF and they were even faster (~5 days) to figure out protocols to keep kids in the program so their essential worker parents could fight this

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