lchengify

9 ms·

31.
by lchengify 3y ago
IIRC the bigger component was the time issue. When the flight is an hour and the train ride is 3 hours it makes a big difference. But I would imagine it's seat density (more seats in a plane fuselage vs a train car) and sold seats vs e
32.
by lchengify 3y ago
It's mentioned a few times in the article, but Brightline has been a outlier in terms of successfully building high speed passenger rail in the US. I read an article a while back about how Brightline chooses it's routes. I can&#x2
33.
by lchengify 3y ago
Tesla tried out battery swap stations about 7 years ago [1]. They assessed that demand wasn't high enough. Basically, it cost money to do battery swaps (which paid for battery swap infrastructure), whereas supercharging was just the co
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by lchengify 3y ago
That was one of my takeaways as well. Nothing beats primary sources and aligned incentives. Also just as a practical matter: Professionals are required to track the money and engineering, so there's bound to be a paper trail. No one h
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by lchengify 3y ago
> one reason there were major delays was because maps of underground sewer lines and plumbing were inaccurate, and needed to be relocated. New York calls this "peek and shriek" [1]. No one really knows whats under the street un
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by lchengify 3y ago
> Sonders said she sees the U.S. as having experienced “rolling” recessions in different segments – such as housing or manufacturing – as opposed to the entire economy being swept up in a full-blown downturn. “The recession versus no rec
37.
by lchengify 3y ago
I live in the area. Theoretically the West Seattle / Ballard link extensions will include stops at Seattle Center (park between the Space Needle and Climate Pledge Arena). Shovels in the ground 2026, ETA 2037. [1] https://ww
38.
by lchengify 3y ago
Have you looked at the Seattle area / PNW as a use case at all? I imagine the geography would be perfect for a solution like this. Seattle has a pretty extensive ferry system that they are in the process of electrifying [1]. It's
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by lchengify 3y ago
I expected this deal to happen right after Dara became CEO, and definitely after Uber sold off their self-driving division. This is why I've owned Uber stock since the IPO, despite the ongoing volatility. Uber is a software-powered com
40.
by lchengify 3y ago
Thank you for your work :). It's been a long time since I used the PDB directly but I remember being frustrated about how essential and sparse it could be. I'm curious about your toolchain. Is it just a community going through and
41.
by lchengify 3y ago
Full disclosure: I am not an active researcher and haven't been in a wet lab in a while. Not disagreeing with your statement. IMO Cryo-EM is a huge step above crystallography and captures way more biologically accurate structures on to
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by lchengify 3y ago
I worked a bit in computational chemistry (small molecule drug discovery) and currently do some early-stage biotech angel investing. Chemistry is very much on the edge of what is possible with ML / AI because it requires training on ha
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by lchengify 3y ago
I would say Philly is famous for it's food generally. Philly is one of the best places in the northeast to get high quality food at reasonable prices. Especially sandwiches. Speaking strictly for myself, it's like a game day thi
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by lchengify 3y ago
Ah man, despite baking a lot, I've never tried to make the bread myself. You're going to want a hoagie roll [1][2]. They are shaped like a baguette and have the same ingredients, but way softer, chewy-er and denser. It's a pr
45.
by lchengify 3y ago
Lived in Philly for a few years and my family is from there. Makes sense that the Cheesesteak would be a popular export. Its origins are Italian, and like other Italian foods you can make it anywhere if you get the prep and the ingredients
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by lchengify 3y ago
Ha! And I remember when Perl was the default "glue language". It's been a long time since I've seen Perl, I bet it's still kicking around somewhere but I doubt they teach it in undergrad anymore.
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by lchengify 3y ago
User of Ruff here and follower of Charlie's work. I've been slinging python since 2003, and I've used a pretty wide swath of the toolchain. I've also had the (pleasure?) of using python in a lot of different contexts: de
48.
by lchengify 3y ago
Just asked it about Washington State's new 7% capital gains tax and it got the question right. Looks like it's trained on state stuff too.
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by lchengify 3y ago
Agreed re: B2B, but I've looked at a handful of the Webapp / PWA solutions for B2C app store and it's still pretty far away. B2C users really demand a consistent experience despite the state of the device, and it's hard
50.
by lchengify 3y ago
It's true that Kotlin wasn't a breakout success 5 years ago. However, I would argue Kotlin's design decisions made it destined for its current success, whereas Dart has not. The most obvious of this was same-build compatibili
51.
by lchengify 3y ago
Dart is pretty straightforward, but there are some idiomatic concepts you need to get just to get started. Laying out a View and updating values is the most obvious one, but also how startup and libraries integrate also comes to mind. The b
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by lchengify 3y ago
Yep, this is a problem that Flutter shares with Unity: It's BYO(everything) and not at all APK optimized. You use native, Android won't re-download libraries that are already on the device. Drops your APK size, increases your rank
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by lchengify 3y ago
Yep. Also, the decision is different when you don't use the app store for distribution. I know lots of niche business-specific use cases where they don't care if it crashes half the time. If you need something on mobile quickly fo
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by lchengify 3y ago
The problem with Ionic and React Native has always been the JS/Native bridge. Works great when you're coding it, but to debug any problem rationally you need both native platform and JS expertise. This problem then fans out into
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by lchengify 4y ago
Wow. Ok. Thank you for sharing this. Guice was one of my first "aha" moments at Google about how modern Java could be written without a million XML files. I later took Guice to multiple other companies and projects back when I use
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by lchengify 4y ago
Not privy to special information w.r.t. this change, but I can think of a few: 1. Breaking focus / competing on multiple fronts. Lots of firms specialize in A-stage or later. By investing in seed and later rather than just seed, the la
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by lchengify 4y ago
For those of you who haven't already, I highly recommend just biting the bullet and switching from HP to Brother for your home printing needs. I was a HP customer for decades . I had models going back to perforated paper dot-matrix pr
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by lchengify 4y ago
You beat me to the follow-up! I actually answered this below. I'll address it directly but it may get flagged as copy / paste so apologies in advance. > As someone managing money, shouldn’t you be looking to mitigate risk to ma
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by lchengify 4y ago
No problem! Some other thoughts I had after thinking more about your question. - Companies that have physical assets often have a focus on operations work (e.g., where do I economically source asphalt near Berlin?). Intellectual Property bu
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by lchengify 4y ago
Unfortunately, I picked most of this up from school (shout out to Babin's Engineering Entrepreneurship class @ Penn) and from my stepmother who is a capital markets attorney. However the two finance podcasts I follow really closely are

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