Shared posts

16 Mar 04:35

Quantum entanglement wins: Researchers report quantum advantage in a simple cooperation game

Joshua Chen

John Stewart Bell: "i didn't know the soul mate game that i invented to chase a soul mate can be a paper"

Quantum systems hold the promise of tackling some complex problems faster and more efficiently than classical computers. Despite their potential, so far only a limited number of studies have conclusively demonstrated that quantum computers can outperform classical computers on specific tasks. Most of these studies focused on tasks that involve advanced computations, simulations or optimization, which can be difficult for non-experts to grasp.
12 Mar 18:21

Six things that could get more expensive for Americans under Trump tariffs

Joshua Chen

I, Pencil: no single person on the face of this earth knows how to make me

Economists say the president's import taxes could result in higher prices for a range of products in the US.
09 Mar 04:14

Bourbon is out, patriotism is in - How Canadians are facing Trump threats head on

Joshua Chen

Trudeau: POTUS plans a total collapse of the Canadian economy because that will make it easier to annex canada " and i suggest all canada citizens don't hold USD and USA bonds and trade with americans in CAD"

Across the country, Canadians are defiant in boycotting American goods and travel even as Trump promises another temporary reprieve.
08 Mar 19:48

China says it is ready for 'any type of war' with US

Joshua Chen

Musk, Zuckerberg: "how about a cage fight of Trump and Xi in Las Vegas?"

chinese, americans: "noooo! that meatball cannot represent us"

The comments come in response to US tariffs and as Beijing boosts defence spending by 7.2%.
08 Mar 00:37

美援急凍衝擊:泰緬邊境醫療、教育、庇護與新聞領域拉警報

Joshua Chen

穆恩昭: 非法居留者每個月交給警方300泰銖(約新台幣290元)可以獲得一個電話號碼,當緬甸流亡記者遭到泰國警方攔查時,可以秀出這組電話表示自己有按時「交規費」

長期蹲點的記者在泰緬邊境訪問多個NGO,包括知名的梅道診所,看見美援「暫停90天」衝擊:哪些有需要的弱勢族群受到影響?來自台灣NGO的資金、泰國醫院的臨時支援如何幫助學校與診所先撐過來?未來又該如何?
06 Mar 13:43

Gene Hackman loved acting but 'hated everything that went with it'

Joshua Chen

rip. besides a cool name (金ㄟ駭客), Gene Hackman plays in https://www.imdb.com/title/tt0112740/ about competing the power for critical decision and admitting being wrong about Portugal/Spain horse.

Those who knew him discuss his brilliance, as well as his disdain for the trappings of Hollywood.
06 Mar 13:20

Supreme court rejects Trump request to continue freezing $2bn in foreign aid

by Anna Betts
Joshua Chen

4 of the 9 justices: "POTUS does not need to pay money that was payable and can claim back the money that was gift"

John Roberts and Amy Coney Barrett join liberal justices to leave in place lower-court order on USAid cuts

A divided US supreme court has rejected the Trump administration’s request to continue freezing nearly $2bn in foreign aid, marking a setback for the White House and the tech billionaire Elon Musk, who has been tasked with slashing the size of the US government and its spending.

In a 5-4 decision released on Wednesday, Chief Justice John Roberts and Amy Coney Barrett joined the liberal justices in leaving in place a ruling from a US district judge last month, which ordered the administration to unfreeze the nearly $2bn in aid for work that had already been done, and that had been approved by Congress.

Continue reading...
06 Mar 13:07

US and Israel reject Arab alternative to Trump's Gaza plan

Joshua Chen

Arab League: "of course we 'fail' to address the reality that Israel wants to own Gaza solely"

They say the Arab League's proposal for post-war reconstruction fails to address realities in Gaza.
05 Mar 04:26

Rising egg prices in the US spark chicken rental trend

Joshua Chen

renter: "all in grey economy and tax-free"

The service provides hens, feed, and support for six months, allowing customers to collect fresh eggs at home.
03 Mar 18:17

Hegseth orders pause in US cyber-offensive against Russia

Joshua Chen

a senior defence department official: there is no greater priority to Secretary Hegseth than the safety of the Warfighter in all operations, to include the cyber domain

POTUS: "oh shit! the army is not with me"

The reported directive from the defence secretary comes during an American push to end the war in Ukraine.
01 Mar 23:31

'Trump and Vance were so rude': Ukrainians react to disastrous meeting

Joshua Chen

Z: "Thanks USA for previous help but now they cannot afford any more. Alas. In case we win the war finally, we will trade rare earth with anyone who concurs Ukraine territory sovereignty and helps us in military operations. In case we lose the war finally, i thank you in advance"

The more the country is attacked, the more unity there is, people in Kyiv tell the BBC.
01 Mar 23:30

European leaders back Zelensky after Trump clash

The Ukrainian president thanks European leaders for their support after a flurry of messages on social media.
28 Feb 20:37

Crypto sleuths join hunt for $1.5bn stolen in biggest ever heist

Joshua Chen

deepseek: "current unit cost of ETH is around USD 400 ~ 600, so bybit, or any one, can pay a bit higher than USD 160.5M ~ 240.8M (= stolen 401,346 * 400~600) to ETH proof-of-stake validators to roll back the stolen funds"
ETH validators: "no! we are conscientious people"
SN: "by human history, you will be not"

ByBit is offering financial rewards to anyone who can spot criminals attempting to launder the stolen crypto.
22 Feb 18:59

Fast-food giant KFC leaves Kentucky home for Texas

Joshua Chen

William Lai: "nothing burger"

Move away from its ancestral home is part of a wider shakeup at its parent company Yum Brands.
22 Feb 09:06

China anger as US amends wording on Taiwan independence

Joshua Chen

POTUS: "actually i support Taiwan to be the 51st state of USA. Ah, no, 52nd state. Ah no, 53rd state"

Beijing demands the US "correct its mistakes" after it altered its factsheet on the self-ruled island.
12 Feb 07:22

DeepSeek改寫「AI=吃電怪獸」邏輯 華爾街重新評估用電需求

by 環境資訊中心綜合外電;謝明珊、陳文姿 編譯
Joshua Chen

Landauer:“設 k 為玻爾茲曼常數,T 為工作溫度,翻轉1 bit 至少需要 k*T*Ln2 焦耳。例如在地球室溫下,效率最高的計算機應該是 2.9E-21 焦耳,現有計算的效率還有十億倍的增長空間”
DeepSeek:“我之所以更便宜,是因為西方的人力成本,精確說是經濟盈餘,太高了,滲透到他們全部的生產要素中”

2025年春節最熱議的新聞之一就是DeepSeek橫空出世。這個由中國新創公司開發的人工智慧模型以低成本、高效能一舉成名。不僅讓華爾街恐慌,能源股暴跌,更擠下ChatGPT,登上美國蘋果App Store免費下載排名第一名。

DeepSeeK翻轉「AI=吃電怪獸」的定律,華爾街分析師急忙重新評估AI的耗能需求。不僅如此,DeepSeek以開源方式分享模型,有助日後AI發展。雖部分資料並未公開,但開源社群正協力補上空白,連微軟執行長也看好未來將是AI百家爭鳴的世代。

DeepSeek的快速崛起被形容為「橫空出世」,各界急忙計算新的AI發展趨勢以及未來的能源需求。攝影:陳文姿

AI高耗能時代即將終結?能源公司首當其衝

中國新創公司深度求索2023年成立,2024年底發表DeepSeek-V3模型,並宣稱這款模型的訓練成本僅558萬美元,遠低於競爭對手。據估計,ChatGPT-4訓練成本高達7800萬美元,換句話說,DeepSeek僅用了1/10不到的費用。DeepSeek在2025年乘勝追擊,1月發布開源大語言模型R1,撼動全球。

金融時報》報導,DeepSeek的突破表明了AI對能源的需求比想像的少,於是投資 人開始拋售股票。西門子能源(Siemens Energy)、GE Vernova、星座能源(Constellation Energy)等能源股都受災,星座能源更是一度暴跌20%。

法新社》解釋,AI革命原本的假設是──計算需求和能源需求都會呈現指​​數增長,因此需要大舉投資數據中心與電力。過去就是在這樣的假設下推升了能源類股。投資研究公司晨星(Morningstar)指出,從R1看來,當運算效率提升,電力設備可能不需要那麼多。

電力雜誌《Power》報導,傑富瑞(Jefferies)投資銀行指出,恐慌性拋售是一時的過度反應,但DeepSeek的高效已經推翻了電力需求會指數成長的預測。至於AI的電力需求會降低多少,研究人員正努力計算中。

根據人工智慧分析網站Artificial Analysis分析,DeepSeek R1在人工分析品質指數(Artificial Analysis Quality Index)僅次於OpenA的o1

Jevons悖論:AI更節能,反而會增加用電量

DeepSeek將如何影響未來,各方看法不一,微軟執行長納德拉(Satya Nadella)則在他的個人LinkedIn上引用了傑文斯悖論(Jevons paradox)。

經濟學家傑文斯(William Jevons)1865年觀察到,煤炭的使用效率增加後,煤炭使用量不減反增。納德拉指出,「隨著AI更高效、更普及,它的應用將快速飛增,讓人們的需求跟著持續增加」。換句話說,DeepSeek最終可能會導致能源需求上升。

法新社》訪問了AI研究學者侖森(Andrew Lensen),他指出,DeepSeek採用思維鏈(Chain-of-thought)技術來提升邏輯推理,這項技術的運算過程較為耗能,之後可能會更普及。

DeepSeek發表後,迅速攻占美國蘋果App Store免費下載第一名。2025年1月31日截圖自Apple官網

DeepSeek開源的未來

DeepSeek目前陷入各種爭議,義大利以資安疑慮為由暫時下架APP、台灣公務機關也全面禁用Deepseek AI 服務,OpenAI則指控DeepSeek盜用模型開發。雖然不確定這些爭議是否會影響使用者,但DeepSeek的模型是採用開源發布,這代表研發人員可以取得它的研發數據後,以此為基礎進一步研發創新AI的應用。

不過,AI開源社群平台Hugging Face發現, DeepSeek並未完全揭露訓練模型,因此,他們展開Open-R1計畫,要以更公開透明的方式填補DeepSeek未揭露的部分,讓DeepSeek-R1完全開源,做為未來AI模型研發與創新的基礎。

12 Feb 07:19

川普與馬斯克為何主張「USAID必須死」?獨裁國家聯盟將漁翁得利?

Joshua Chen

CIA: "mr. president, do you want to revive the abandoned bitcoin project so that taxpayers, of Russia or China or USA, are not forced to pay anything they don't like?"
POTUS: "no, I want USA taxpayer money for drilling which obviously Joe doesn't like"

甘迺迪設立至今已64年的USAID,曾拯救數千萬人性命,也曾幫助台灣和韓國的經濟起飛,更讓國際發展成為與軍事國防、政治外交並行的美國國安戰略三大骨幹之一。但這些援助成就,為何始終無法讓美國政壇信服?「砍掉重練」USAID恐將為中俄留下絕佳的國際真空?
12 Feb 02:18

Stripey-faced fish named after warrior princess San

Joshua Chen

Haochen Huang: The film delves into the complex relationship between humans and nature, promoting a message of harmonious coexistence between the two: something we hope to echo through this naming

The newly discovered fish has stripes on its face like the Studio Ghibli warrior princess.
11 Feb 20:44

US tech stocks steady after DeepSeek AI app shock

Joshua Chen

DeepSeek: "I am cheaper because western's human cost, actually surplus, is too high and it penetrates too all production factors"

DeepSeek's claim that its model was made at a fraction of the cost of its rivals has rocked the AI industry.
10 Feb 20:52

Baltic states begin historic switch away from Russian power grid

Joshua Chen

EE: "people shall notice their appliance more powerful now; the same grounding and frequency but somewhat higher voltage from 220 to 230"

More than 30 years after leaving the Soviet Union, Estonia, Latvia, and Lithuania will join the EU's grid.
10 Feb 20:37

Experts warn of threat to global health as US freezes overseas aid

Joshua Chen

WHO: "fyi, donate.who.foundation"

The spread of disease, as well as delays to the development of vaccines and new treatments, could be affected by cuts to USAID.
03 Feb 23:34

EU foreign policy chief says defence spending must rise

Joshua Chen

SN: "Russia spending 9% of its gross domestic product (GDP) on defense is only possible by its fiat money monopoly and taxation"

Kaja Kallas says Europe needs to increase investment to keep pace with threats facing the continent.
31 Jan 22:18

Every bull market topped within 330 days of breaking the previous cycle's all time high. We are now at 315 days!

by /u/birth_of_bitcoin
Every bull market topped within 330 days of breaking the previous cycle's all time high. We are now at 315 days!

Every bull market topped within 330 days of breaking the previous cycle's all time high.

We are now at 315 days.

How much longer? 🧐

How much higher? 🤔

submitted by /u/birth_of_bitcoin
[link] [comments]
31 Jan 21:26

Inside the race for Greenland's mineral wealth

Joshua Chen

XI: "we will participate the auction of Greenland's ownership as well as other nations"

The territory's untapped mineral wealth has caught the eye of both mining firms and Donald Trump.
25 Jan 20:08

Influencers, tech bros, MMA fighters: Trump's inauguration guests

The inauguration guestlist features unlikely names including MMA fighter Conor McGregor and influencer Jake Paul.
25 Jan 19:52

Trump pardons Silk Road dark web market creator Ross Ulbricht

Joshua Chen

Ross Ulbricht: "Caught by undercover three-letters agents, I will never debate with persons in internet forums about Friedrich Hayek in my real name again"

Trump said he had called Ulbricht's mother to let her know he had granted her son a full pardon.
25 Jan 19:47

【圖表】為什麼大砍總預算? 環境相關業務費、各計畫刪凍理由一覽

by 環境資訊中心記者 李蘇竣報導
Joshua Chen

Ross Ulbricht: "自己覺得重要的事其他人未必覺得重要。不用繳稅也不用立法委員,如果覺得某個業務重要但是錢不夠,就自己去送錢吧。想當年卡特斷交,一堆人突然覺得國防預算不夠去捐錢買飛機,才不管什麼 1% 3% GDP的"

立法院21日三讀通過中央政府總預算案,刪減2075億餘元成史上最多。環境與能源相關業務都大受影響。被刪除或凍結的項目之中,最大宗包含差旅費、業務費,以及媒體宣傳費等,幾乎全部單位都遭到通案刪減。卓揆表示,刪減數字至今無法核算,行政院將依法提出覆議。

史上最高刪減、凍結數 較前三年增6倍 

刪減最多的部會是經濟部,刪減1037億元。經濟部長郭智輝昨(23)日於行政院會報告指出,經濟部業務費刪減影響層面廣泛,例如水利署負責全台3000座水門操作維護,需要電力操作,少了水電費將增加淹水風險;或是電纜地下化計畫也要延宕取消;或是因為庫存備品減少,也可能影響天災搶修速度。諸多給企業的輔導支持也都受阻,整體國家經濟競爭力將受到衝擊。

行政院主計總處初步統計,綜整預算中的水電費、國內外旅費以及設備等行政業務相關項目,中央政府業務費總共被刪除達217億元,各部會實際影響的項目還仍待統計。舉例來說,監察院在上述相關業務費預算被刪減96%、凍結4%為最大宗;而資源循環署則被刪除10%、凍結86%;能源署也被刪除30%、凍結50%。

閣揆:政府開門沒水電

所謂的業務費究竟是什麼?行政院長卓榮泰23日對外說明,業務費是包含人事費、維護費,或是油料及文具等費用,是行政機關基本運作的預算,遭國、眾兩黨「無差別式」的刪除,將癱瘓政府的正常運作,讓未來的政府機關陷入有車沒有油、開門沒水電、辦公沒紙筆。

總統府業務費被凍結70%,昨日在總統賴清德召開的總統府氣候變遷對策委員會上,有14位民間委員因擔憂預算被刪影響委員會制定國家減碳目標,共同連署主動放棄出席費。

卓榮泰直言,因為對通刪的計算方式仍不確定,行政院與立法院間還在核算數字,可能要年後才會送交政院。卓揆表示,覆議是行政院的憲法權利與義務,後續會依法進行救濟。

通案要怎麼算? 刪減數字難產、政院將提覆議

雖然總預算案三讀通過,但最終刪減數字仍有爭議。

目前的2075億是如何算來?立法院會先是在1月17日決議通案刪減項目及總刪減金額共939億餘元,加上各委員會在此之前已無異議刪減共67億餘元,再加上21日「馬拉松式」表決共刪除1068億餘元。立委們將三者相加,對外宣稱共2075億7425萬餘元。

問題就出在這939億到底該怎麼算?行政院方面質疑,17日院會通過的決議是設定「總刪減金額」要高於939億元門檻,若是這樣,後續的審查結果金額早已超過,應以審查結果為主。但21日的決議卻變成要求「通案刪除」的項目要達939億元,意思是必須額外多刪、直到補滿。

有立委助理私下透露,不論是17日的通案刪除還是21日的表決,兩個決議都具備同等效力,但以往會召開協商確認,如果最終表決的金額大於通案,應該以何者為主?但是這次協商卻沒有討論,所以難以計算最終的刪除金額是多少。

主計總處指出,2025年度總預算案刪減約2075億元,佔整體預算的刪減率6.6%,對比前3年平均刪減291億元,刪減率佔比1.1%,大幅增加了近6倍,創下歷史新高。凍結部分,初步核算明年度總預算案凍結數1607億元,凍結率佔比5.1%,也是史上最多,前3年平均凍結數僅140億元佔比0.5%。就算不計爭議的通刪部分,刪減金額仍是史上最高。

近年總預算刪減情形。圖片來源:行政院主計總處

15 Jan 17:35

QA:解密穩定電網的「慣量」 如何因應再生能源增加對慣量的挑戰?

by 環境資訊中心記者 李蘇竣報導
Joshua Chen

發電設備最好都並聯一個電池,這樣的話直接根據物理定律不用人為介入,在發電設備沒在提供電力的時候,還可以由電池提供電力。傳統渦輪發電,在轉的渦輪就是個小電池,儲存的能量是 1/2 * I * w^2 其中 I 是轉動慣量 (單位是公斤 * 公尺平方) 可從渦輪製造商的銷售文件拿到,和能量大小無關。w 是角速度,這也是電網頻率,每秒 60 的頻率是 2 * pi * 60 = 120 * pi。依據能量守恆,能量生產 = 能量消費 + 儲存的能量,兩個時間點之間能量生產比能量消費少,w 就會減少,I 越大 w 減少的幅度就越小。I 相對於總體電力消費也不大,我記得很久以前全台大停電時候從正常到全黑也沒超過十秒;設定當時能量消費功率是 C 瓦,那麼 C * 10 = 1/2 * I * (120 * pi)^2 ,所以 I = C * 20 / (120 * pi)^2 。理論上,可以用非常輕的金屬來製造渦輪減少摩擦增加能量生產效率,那這樣的渦輪發電機就幾乎沒有慣量了,所以也幾乎沒有小電池,說 "電網逐漸脫離傳統火力發電的結構,必須克服新的挑戰" 怪怪的。儲能設備對應的 "虛擬慣量" 也沒什麼好測的,就是儲存的能量 * 2 / (120 * pi)^2 。我自己個人的太陽板並聯的電池儲存能量是兩天,主要是為了白天黑夜,所以十秒鐘的烏雲也就不是會去想的問題了

淨零排放當前,隨著再生能源增加,電力系統中的「慣量」卻逐漸減少。台電去年11月啟用60MW宜蘭冬山儲能系統,是目前全台唯一可實測系統慣量的儲能系統。慣量是什麼、台電如何透過「虛擬慣量」調整電網頻率?本文採訪台電技術人員來揭秘。


冬山儲能場占地約1600坪,設置23個儲能貨櫃。圖片來源:台電提供

Q1:電力系統中的「慣量」是什麼?

慣量是一種在慣性作用下,傳統發電機組的轉子與渦輪葉片暫時維持轉速,穩定電網頻率的能力。

行駛中的大貨車途緊急剎車,車體繼續往前滑一段距離才靜止,這是生活中常見的「慣性」物理現象。當前主要的火力發電機組,是透過內部轉子、葉片高速旋轉的動能發電,即便發生事故,機組也會在慣性作用下繼續運轉一定時間,可以暫時維持電網的頻率,這股能力就稱為「慣量」。

Q2:再生能源增加,電網慣量變少?

隨著能源轉型,光電與風電等再生能源逐漸取代原有發電機組,全台電網的慣量正在減少。

台電輸變電工程處智控系統技術組長蔡曜鍠解釋,太陽光電是直接將光轉換成電能,不存在機械運轉的慣量,一片雲飄過,光電「說停就停」。離岸風電雖然有葉片旋轉,但輸電過程多了一道換流器的關卡,與電網沒有即時回饋,也可視為沒有慣量。

Q3:搶救停電功臣?慣量與電網頻率有什麼關係?

根據台電,頻率、電壓、慣量,是電力系統三大重要指標。慣量的功能是在短時間內抵抗干擾,維持原本的頻率,延緩電網波動起伏——但慣量不是無止盡的。

蔡曜鍠解釋,在正常情況下,電網頻率會保持60赫茲(Hz),意味發電與用電維持「供需平衡」;而機組發電頻率又與電網頻率互相影響,轉速約每分鐘3600轉。當發生機組跳脫或用電量突然出現大幅變化等情況,電網頻率降低,機組轉速也可能被拖慢。當頻率持續降低,可能會出現「全黑」大停電,意味著電網崩潰。

若有突發事件,各大機組的慣量可短暫穩定電網頻率,減緩意外的衝擊。台電必須把握這段時間進行適當操作,讓頻率回穩。


燃氣渦輪機組模型,內部透過多組葉片旋轉發電。資料照。攝影:孫文臨

Q4:「虛擬慣量」是什麼?

面對再生能源發電間歇性、用電需求不確定性,台電近年大力建置儲能系統,可即時增加供電、或將多餘的電儲存起來,實現自動調頻的功能;或是透過需量反應機制,即時調度減少用電需求,避免電網頻率過低。

種種維持電網穩定的方法,如同傳統慣量的功能,因此又被稱為「虛擬慣量」。

Q5:如何結合儲能、測量慣量? 

為了掌握電網中的慣量變化,台電2023年與英國創新能源技術公司RTL合作,展開全亞洲第一個電力系統即時慣量量測計畫,全國已有10處場域佈建測量設備。

台電2024年11月啟用的60MW宜蘭冬山儲能系統,導入「週期性功率調變功能技術」(FPPM),是目前全台唯一可實測系統慣量的儲能系統。冬山儲能場儲電量達8.5萬度。蔡曜鍠說,冬山儲能場只會在需要時使用5MW的容量用於實驗。

為何選擇儲能場?蔡曜鍠解釋,一般發電機發出的電太過穩定,無法模擬突發狀況,而儲能屬於直流電源,可人工操作,釋出不同的干擾波,以測試電網的即時回饋狀況,長期監測電網變化,作為未來電力調度重要參考。


電網逐漸脫離傳統火力發電的結構,必須克服新的挑戰。攝影:李蘇竣

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Ros Atkins on...Elon Musk's political interventions

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