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P.S. You Should Know... | Issue #204

February 21 · Issue #204 · View online
P.S. You Should Know...
👋 Welcome back to P.S. You Should Know… probably the best newsletter published on Sundays between 6-7am CST, and definitely the best one published by me. Now in its fifth year!

my story 🚀
🔌 As is true for so many in Texas, this week didn’t go exactly as planned. Thank you to everyone who reached out to check on us. We did not have to make our own candles from oranges, though I’m glad to learn it’s an option.
  1. Design assumptions meet reality. In Texas, as in much of the south, builders often install water heaters outside homes. It’s great, saving on installation cost and interior space. Water heaters use a feature called ‘freeze protection’ to keep safe when conditions get too cold. But if the power suddenly turns off, as we experienced this week, the feature doesn’t help. The freezing weather led to power failures; the cold + power failures led to water heater failures. It’s not wild to suspect it’ll happen again, too. Will builders and property owners do anything different next time?
  2. Just when you need it the most. For the second time in a year, I’ve experienced a large scale supply shortage. It’s both obvious and remarkable how people tend to need the same resources at the same time. Whether it’s toilet paper in March 2020 or hotel rooms with heat in Austin last Monday, there’s always a crunch when the demand rises sharply. But doesn’t demand always seems to rise sharply when it rises?
fun facts 🙌
Protecting your capital during a war. This is hopefully completely useless to all of us. “Wars are one of the greatest destroyers of capital… The book chronicles the experience of investors during World War II: whose wealth was destroyed and why. And what you could have done to protect your wealth.” | learn more
The long hundred. “The long hundred, also known as the great hundred or twelfty, is the number that was referred to as "hundred” in Germanic languages prior to the 15th century, which is now known as 120…“ | learn more
oh, chicago 🏆
The DMV can be a frustrating place…
Felony bond court —

Off-duty Chicago cop, on restricted duty and barred from carrying a firearm, is charged with having a gun and causing a disturbance at NW Side driver's license office by (here comes some extra irony) refusing to stop taking pictures and video in the office.
tech, startups, internet ⚡
Missed the internet wave. “In the interview [Matt Mullenweg, founder of WordPress] talks about how early in his career he felt like he missed the wave of the Internet revolution.” | learn more
SpaceX wants to be a phone company too. SpaceX’s petitioned the FCC, “aiming to offer cheaper phone plans for people with lower incomes through Starlink.” They’re thinking $9.25 per month for broadband and $5.25 for phone service. Move over, AT&T! | learn more
better doing 🎯
How to get better introductions. Troy Henikoff of MATH Ventures explains in this 3-minute video. “The best way to get that introduction? The forwardable email.” | learn more
Bus factor 1. “A company dependent on a single person’s work has a single point of failure. In tech jargon, they have low Bus Factor, the number of people who would have to get hit by a bus for the project to fail. The higher your Bus Factor, the greater your institutional resilience.” | learn more
The best-case outcomes are statistical outliers. “There’s nothing wrong with hoping for the best. But the best-case scenario is rarely the one that comes to pass. Being realistic about what is likely to happen positions you for a range of possible outcomes and gives you peace of mind.” | learn more
to your health ⚕
Breathing and your immune system. I’m just now learning about how breathing impacts our bodies beyond the obvious. I’m fascinated. If anyone has insight or personal experience on this topic, I’d appreciate a chance to learn from you. | learn more
retail therapy 💸
Former Eaze CEO to be charged for illegal cannabis payment processing. I managed to uncover this scheme in July 2019, so it clearly wasn’t well-hidden. They used a shell company in Cyprus and websites like (no longer online) and to masqueraded as delivery services for innocuous products. “Federal prosecutors reportedly plan to charge a former CEO of California cannabis delivery platform Eaze in connection with a case accusing two businessmen of deceiving banks into processing $100 million worth of credit and debit payments for marijuana products.” | learn more
The meltdown of Ample Hills, Brooklyn’s hottest ice cream company. In short: ops matter—a lot. “Ample Hills had $19 million in funding, a deal with Disney, and dreams of becoming the next Ben & Jerry’s. Then everything fell apart.” | learn more
under the microscope 🔬
New skin patch promises comprehensive health monitoring. A game changer for health if this makes it out of the lab. “Scientists have developed a thin, flexible skin patch, worn on the neck, that can provide all-in-one health monitoring capabilities, including the wearer’s heart rate, blood pressure and glucose levels.” | learn more
Drug brings significant weight loss in obese patients. This already-approved drug [Semaglutide] just showed remarkable results. “Nearly 2,000 participants, at 129 centers in 16 countries, injected themselves weekly with semaglutide or a placebo for 68 weeks. Those who got the drug lost close to 15 percent of their body weight, on average, compared with 2.4 percent among those receiving the placebo.” | learn more
The science behind intermittent fasting. This is an excellently thorough yet approachable summary of the research into intermittent fasting. Well-sourced and cited. | learn more
big ideas 📚
New concept for 10x rocket thrusters. “[The] new plasma thruster concept can generate exhaust with velocities of hundreds of kilometers per second, 10 times faster than those of other thrusters.” That’d help us get to Mars faster! Much faster, in fact, because the gains of faster acceleration are compounding. | learn more
calls to action 👇
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