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@zzbar

Beida Ren (北大人), Theoretical Physics, Investment Management, Hedge Fund, Startups, Back to Physics. All Things Made by Apple, and Beaches. zzbar=(x+iy)(x-iy)

Manhattan, 重庆, Fire Island Katılım Mart 2009
1.4K Takip Edilen1.6K Takipçiler
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@Anthony_Bonato It depends on the meaning of “proof”. Sin(x)=x for small x. Can’t convince me otherwise
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@GlennLuk To be fair, when the US government is taken over by parasites, its decision making process is no longer based on rational arguments. The original prior was still corrct (*) (*) apply to rational players only.
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Glenn
Glenn@GlennLuk·
I subscribed to the former — that the shale revolution was a major positive by promoting American energy independence because it lowered the risk of getting embroiled in another war in the volatile Middle East. It turns out I was wrong, and recent weeks have forced me to update priors accordingly.
John Arnold@johnarnold

The conventional wisdom in the 2010s was that energy independence would reduce US military involvement in the Middle East. In practice, high domestic production lowered the economic risks of disruption, making actions like a strike on Iran viable.

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Rushi
Rushi@rushicrypto·
If the last one was named “The Great” Depression, what’s this one going to be called?
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@ruima Missing biomedical and cancel curing.
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Rui Ma
Rui Ma@ruima·
In China, there is a joke going around right now that, 2026 is apparently the Year One 元年 of literally everything: 1/ autonomous driving 2/ liquid cooling 3/ domestic HBM 4/ on-device AI 5/ solid-state batteries 6/ AI applications 7/ quantum computing 8/ compute-memory integrated chips 9/ brain-inspired computing 10/ the low-altitude economy 11/ commercial space 12/ humanoid robots 13/ silicon photonics 14/ controllable nuclear fusion Is there a frontier technology that ISN'T going to hockey stick / cambrian explode this year???
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@ABC Some success? Knocking out 4 THADDs is some success, devastating success actually.
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ABC News
ABC News@ABC·
Iran has targeted U.S radar systems with some success. An ABC News analysis of satellite imagery and verified videos suggest that at least 10 radar sites used by the U.S. and allies have been struck by Iranian drones or missiles since the start of the war. Patrick Reevell reports. abcnews.visitlink.me/w0-JGa
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Policy Tensor
Policy Tensor@policytensor·
“The formidable Axis of Upheaval (or perhaps Axis of Autocracy, or maybe Axis of Aggressors, or if you prefer Axis of Chaos, don’t forget the venerable Axis of Authoritarians).” 😂
Jake Werner@jwdwerner

My new piece tries to make sense of how the fantasy Axis of [Something Bad] caught on in DC despite being very silly. China seems weak because it can’t defend the (imaginary) Axis, so the Blob is starting to think that open aggression could work if they were at the helm.

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⛵️@zzbar·
This claim of Laundry room fire may be for insurance claims. I once saw a house burned by fire started in the garage because a neighbor’s propane tank exploded and a projectile hit the garage. House owner’s Insurance only covered fires, not neighborhood exploding propane tanks.😉
Bloomberg@business

The USS Gerald R. Ford aircraft carrier is leaving the fight with Iran and heading back to port, a source said, after a fire broke out in its laundry area and left at least two sailors with non-life-threatening injuries. bloomberg.com/news/articles/…

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David Fishman
David Fishman@pretentiouswhat·
⚡️China Power Consumption Update Jan-Feb 2026 We're back! Chinese power consumption rose a healthy 6.1% YoY in Jan-Feb 2026, totaling 1656 TWh. China's Jan-Feb data are always condensed into one number to account for the Spring Festival falling in alternating months. 🧵
David Fishman tweet media
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الطاقة
الطاقة@Attaqa2·
الإمارات تزود كوريا الجنوبية بـ24 مليون برميل من النفط attaqa.net/?p=589017 #الإمارات #كوريا_الجنوبية #النفط
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@policytensor But Ian’s clients prefer sticking their heads in the sand as long as possible.
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@BBCWorld Why do you care? Shouldn’t you ask yourself “can UK withstand it “?
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Doggy Dog
Doggy Dog@DoggyDog1208·
Can you solve this brain teaser? China invests far more than the US, is the largest market by far of just about any product (cars, phones, appliances, furniture, luxury etc), runs a trade surplus… and yet has a lower GDP?
Glenn@GlennLuk

To summarize, I don’t see a reasonable set of assumptions on different repricing multiples grounded in empirical evidence that can get you from 40% consumption to 60%. China is a highly capital-intensive economy and in the world of GDP accounting identities, that all else equal invariably means low household consumption as a % of GDP!

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Zichen Wang
Zichen Wang@ZichenWanghere·
My op-ed in Foreign Policy @ForeignPolicy timed for the China-U.S. trade and economic talks in Paris came out last night: ‘Made in America’ Should Accept Chinese Investment Private Chinese capital is being locked out of mutually beneficial opportunities.
Zichen Wang tweet media
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@charrlie3045 Shouldn’t an absolute value sign bracket the ratio of the gamma function inside the log?
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It’s telling that not a single reporter at the White House today asked Trump directly if Bibi Netanyahu is dead or alive? Are they all cowards?
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@Eng_china5 It’s just an enlarged mosquito killer system that you can put in your front porch.
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China pulse 🇨🇳
China pulse 🇨🇳@Eng_china5·
A Chinese company has developed a “civilian” low-altitude drone laser strike system. Racing drones can be detected by radar from five kilometers away, and once locked at close range, maneuvering to evade is useless. The only question: is this really a civilian product?
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@annmarie China never confirmed the visit. Trump invited himself. He can’t delay something that was never scheduled.
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Annmarie Hordern
Annmarie Hordern@annmarie·
Trump could delay his summit with China’s President Xi Jinping later this month, he tells the FT. Trump also said he was expecting China to help unblock the strait before he travels to Beijing for the summit.
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