@Esther041011 The best way to learn addition in elementary school is to first introduce the concept of abelian group!
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大毀滅者🏳️⚧️
343 posts
The best way to learn linear algebra is to first study abstract/commutative/homological/homotopy algebra, category, Lie groups&algebras, representation theory, algebraic geometry/topology/number theory and ∞-categories and then devote all your efforts to learning linear algebra
yifei e/λ (meetmeinshibuya march 15)@yifever
to this day the best way to learn japanese is to learn chinese first
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And in general, it’s not fair to blame US colleges for ‘lower standards’. The real problem lies in middle and high schools, where training on STEM related subjects is deplorably weak. Colleges then have to teach things more slowly to ensure a smooth transition to more advanced stuff
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Did you know? At China’s elite “985” universities (Tsinghua, PKU, Fudan – where ~80% of top tech/finance talent comes from), core math like calculus & linear algebra don’t use American textbooks as the main text.
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You are delusional if you think Chinese universities use that infamous Tongji linear algebra textbook. That book is commonly agreed to be the worst linear algebra textbook. Everyone thinks the book is a joke now. It’s probably the only linear algebra textbook that teaches determinant before even introducing the concept of a matrix
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3/ Linear Algebra follows the same pattern: Tongji (or uni-specific Chinese editions) emphasize abstract vector spaces + proofs early.
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@Punished_normie @predict_addict I think that’s due to how the courses are scheduled. Usually for your first term in college, often you take single variable calculus and introductory physics simultaneously. So the physics course can’t just assume you already have a good understanding of calculus
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@predict_addict American textbooks are overly long, expensive and make everything superficial.
Many introductory physics textbooks don't even use calculus.
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全球变暖带来的气候变化，比如中南半岛热季气温更高，雨季雨水形成洪涝，这几年泰国的变化，与我刚到泰国时已经不一样了。
显然极端天气更多。
王海滨的财经闲谈@wangwatchworld
global warming
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@AngelicaOung @brianhioe The question is, does calling for more democratic elections fit into this definition? I see a lot of mainland medias conflating calls for democracy with secession.
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@brianhioe The national security law of HK relates to secession, subversion, terrorism, and collusion with foreign forces. That leaves a lot of room for the kind of free speech I’m interested in but not a lot of room for fomenting a color revolution. I think that’s a fair compromise.
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@Areskapitalon 这种超短线炒新闻的都是天下功夫唯快不破，计算设备效率优化到最高，网络延迟弄到最低，AI自动抓取新闻解读是利好还是利空然后下单（路径依赖实在太强了，要分析这些消息到底可不可靠的话，基本要推倒这套体系的一大半了
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我倒觉得是自从赌川普taco的量化被割干净以后，量化的标准都变成了赌伊朗taco。结果“伊朗总统说要结束战争”这个headline一来，不经过任何的背景分析，量化一拥而上。但是当然非常清楚，伊朗无论是总统还是外长的话仍然还是过去很长一段时间立场的重复表述。
無貓愛孩男@GeneralPetite
@Areskapitalon 主要是跟川普的發言對上了，市場認為雙方已經建立了默契。
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@AngelicaOung The bigger question is, how do you define ‘reunification’? Does it mean one country two systems, or merely a symbolic reunification( like both sides sign an agreement declaring there’s only one China , and life goes on), or something else
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Taiwan’s status quo is the small status quo. It only makes sense in the context of the big status quo which is the unipolar world order.
When we can see the foundations shake under the big status quo, then it is time for Taiwan to prepare for our own little status quo to become unstable.
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@testinprodcap @tolstoybb This is basically a short volatility trade. The P&L curve of this strategy is probably similar to naked selling options: mostly you will be correct and make decent amount of money, and loss will be occasional but very huge
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@tolstoybb Heads-up: Pre-market so-called “news” or “Truth” is often just a setup for profit-taking. Basically, it’s a reverse indicator. Do the opposite: If they pump it, short it. If they dump it, go long.
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大毀滅者🏳️⚧️ me-retweet
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@AngelicaOung Doesn’t the same argument apply to China in the 1970-80s? Allying with US to corner Soviet Union
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There is nothing new under the sun
Islamic Scientific Heritage@IslamicSH_
Niccolò Machiaveli : "To ally with great powers to defeat your neighbor is a strategic trap; if you win, you become the slave of the greater power; if the allied power is defeated, you remain alone and defenseless against the angry neighbor, and you are destroyed." [The Prince]
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@Konekoutena 其实我也这么觉得，俄罗斯靠战争重建了军工业，欧盟因为内部无法统一意见，形不成合力，军工重启速度很慢，但也在进行中。美国如果能通过军工重整工业，还真的能恢复过来
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其实川普要是有魄力现在就该选择梭哈，马上让国内进入战时状态。美国工业荒废已久，需要一剂强心针来提振。也可以借用战时来稳固权力，破除华尔街金融寡头，让美国强行回流。如果马上进入战时工业内循环，美国还是有牌可以打。因为美国本身就有庞大的石油生产能力，加上加拿大也有石油，只要靠政治管控价格限制出口，国内工业基本盘稳得住。相比自己，石油暴涨对欧中日韩这些和美国有竞争工业国伤害更大。梭哈一把有概率重回世界霸主
Carlos@abc202402
我算川黑 但平胸而论，这场打伊朗的战争川普打得还可以啊。 已经重创了伊朗的政治经济军事力量。 进可改变伊朗政权，退也无所谓啊。 现在立即撤军完全不管对美国没啥影响啊。海峡封锁便封锁呗，急的肯定不是美国吧？ 川普还是官瘾大放不下。如果是我我就立即撤了。想其他办法稳定国内油价股价就是。
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@noitselen Was this photo taken before the Iranian revolution? Not wearing a hijab and dressing like that in a mosque is obviously not allowed in the Islamic republic
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A mosque made by Iranians.
It’s a harsh truth but the “Islamic golden age” could’ve never happened without Iranians’ contributions.
But delusional Muslims cannot accept the facts.
Omar El Fares 🇵🇸 عُمَر الفارس@3lfares
That’s literally a mosque
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大毀滅者🏳️⚧️ me-retweet
Under communism, a lot of people get put in jail for no reason. It’s part of the way it works.
American Communist Party@ACPMain
Under Communism, Zionists will be put in jail.
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@wangwatchworld 拼多多这种没有技术含量，不发展高科技，全靠压榨吸血，还搞黑社会型竞业协议，殴打执法人员的垃圾都活的好好的，确实是没法阻止
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中国也在走婆罗门的道路。
尽管今上努力打碎官僚体系，让权贵原子化。
如果你们不天真的话，应该看得出是减缓了趋势，但没有办法阻止。
婆罗门化如同宣纸上的泼墨画。
王海滨的财经闲谈@wangwatchworld
我没看过江教授谈日本。 我个人的看法： 日本有自己的内在底蕴。 但是日本的既得利益集团，也就是五大商社，把收益拿走了。 以低成本日元融资大举投资美国，实际上仍旧是再造日本财阀的海外受益体。 普通日本国民是得不到分享的。 日本是事实上的婆罗门社会，表面上取消了四民。 但华族和武族的家族仍旧控制政治权力和经济。 他们循势力导，拿走大头，然后遵循宋明遗留的士大夫精神，养活国民就可以了。 这样，对于普通人来说，除了读东大成为精英的一部分外，是没有前途的，阶层凝固了。
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