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Joined 2 years ago
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Cake day: July 4th, 2023

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  • What have they actually done?

    I’m all for defederating from instances that cause problems but all the quotes above basically seem to say, “I know you want a revolution but you still gotta follow the rules of whatever instance you’re posting on.”

    It’s your server so your under no obligation to provide a reason for defederating beyond disagreeing with them but it leaves me wondering if there’s anything else or if it’s just a matter of disliking them?





  • Insurance can work just fine for things like hurricanes. Insurance companies have several methods to address it. They’re all effectively variations of buying insurance policies themselves.

    Re-insurance pools are a close analog. It’s basically a bunch of insurance companies from around the planet getting together and agreeing to pool risks. Big companies also use a bunch of funky financial instruments to simulate insurance.

    There’s some risk of increased systemic correlation (eg climate change may increase the risk that major hurricanes hit multiple areas around the planet simultaneously). That’s largely mitigated in that we can see it coming. Climate change is pretty prominent in their models and they can adjust premiums or stop offering policies, over time.

    The bigger risk is in synthetic systemic risk. It’s burned us a bunch of times already and it’s gonna do it again. Those giant global re-insurance pools are almost certainly fine, and worth the risk, if we just use them for their intended purpose. But history shows that we’ll end up creating derivatives contracts on them and those contracts will get leveraged. Those leveraged pools end up merging and turning into giant financial time bombs.


  • Debt is likely less of an issue here. These are PhDs and they tend to be funded by grants. Students typically pay no tuition and get some stipend for expenses.

    Of course, graduating debt free with a PhD in molecular biology from a top program is less exciting when you can’t land a single interview for a junior faculty role.

    Industry may pay twice as much but if you love research and China offers you lab space, you’ll consider it.


  • I think it’s primarily two things.

    China now graduates almost twice as many STEM PhDs as the US does. A lot of people move after their PhD but they tend to stay in country.

    I also think, anecdotally, that new PhDs have a harder time finding a job here.

    Overall China just seems to make more effort to attract scientists. They promise, and deliver, the two things scientists care about, funding and academic freedom.


  • There’s a bigger picture at play too. China has been making itself attractive for researchers in general. It’s not just Chinese scientists moving back. An increasing number of other scientists are choosing to work in China over the U.S.

    In fields where China was pushing it earlier we’re starting to see the results already. There are several fields where a plurality of top tier publications come from China.



  • Adding some detail. Evaporating water takes way more energy than just heating it up.
    When you put energy (heat) into water that’s below 100c it gets hotter. When you add 4,184 to a liter of water the temperature goes up by 1c. If the water is already at 100c it takes 2,260,000 to turn that into 100c steam. The energy that goes into turning water into steam isn’t going into the steak.
    So if you put a wet steak on the grill it will create an insulating layer of steam that keeps the steak at around 100c (even if the pan is above 100c).
    That’s also why you only salt your steak right before or after heating it. If you let salt sit on the steak it will draw out moisture, reducing the Maillard reaction and drying out the steak.

    For a great practical way to grill the steak perfectly, check out videos on “cold searing”.