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)
Joined March 2009
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A fact few know: the Republic of China, which currently only controls the island of Taiwan, does not recognize Mongolia as an independent country. It considers Outer Mongolia plus Inner Mongolia one of its provinces.
JUST IN: Mongolia reaffirms its support for the One China policy.
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Saturday morning self-torturing with some logarithmic integrals. This alternating harmonic sum converges very slowly as ln^2(N)/N where N is the number of partial terms.
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AI models are clueless on this one, but they are good at laborious manipulations if given clear instructions. Once I managed to reduce the integral to Lerch Transcendent and its derivatives, Qwen 3.7 finished the job. Kimi agent made the PDF note based on my handwritten scrip.
May 30
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Nike’s China business, and possibly its worldwide businesses, may never recover from this.
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Long-tailed effect: Li Ning at the 1984 Los Angeles Olympic Games, to Steph Cury partnership.
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Li Ning won three gold medals at the 1984 Olympics: in floor exercise, pommel horse, and rings. He also earned a silver in vault and a bronze in the individual all-around. The Soviet team boycotted the 1984 games.
Jun 2
Going to have a meltdown on X regarding Curry selling out to China
Golden State Warriors star Stephen Curry has signed an endorsement contract with Chinese company Li-Ning, ending a drawn-out recruitment process following Curry's departure from Under Armour in November
espn.com/nba/story/_/id/4894…
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China is the largest trading partner for most of the countries in the world. A prosperous world would buy more stuff from China, a world in recession is bad for everyone including China. Hence, it’s in China’s best interest to bail out the world. Win-win, not zero-sum.
May 30
China's is bailing out the global oil market:
Is Beijing coordinating with Washington?
Or is it taking care of itself, with the global benefit a byproduct?
My @Opinion column on China (May 7) is ⤵️. At the time, I didn't address the question above.
bloomberg.com/opinion/articl…
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Apple dodged a bullet by canceling its car project.
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