2026年7月18日星期六

韓國股市已成美國提款機 还是 美國散戶投資人已成韓國公司提款機?

【屈機觀察 EP396】韓國股市已成美國提款機,揭秘華爾街如何做空海力士?|韓國散戶借爆銀行,央行一紙升息令,爆史上最慘金融海嘯預演? 这言论全面吗?

所謂「美國從韓國投資人身上賺錢」的說法,只反映了事實的一面。 SK海力士(SK Hynix)在納斯達克上市,意味著資金流動是雙向的。誠然,韓國投資者在交易美國存託憑證(ADR)時需支付美國市場的相關費用——但這對於任何海外上市而言都是常態。同時,SK海力士也獲得了美國的投資、更高的流動性、更優的估值,以及進入全球最大資本池的機會。實際上,赴美上市為SK海力士帶來的益處,要大於其對美國金融體系的貢獻。這是一場雙向的交流互動,而非單方面的利益流失。同时,無數的美國散戶投資人依舊在該領域進行激進的槓桿投機,尤其是在 SK 海力士(SK Hynix)於 2026 年 7 月以 265 億美元的規模歷史性登陸那斯達克 ADR 之後。美國交易者並非透過傳統的券商融資帳戶,而是將大量資金湧入超高槓桿的 2 倍與 3 倍單一股票型 ETF 及短期期權(選擇權),從而將買權成交量和散戶槓桿率推向了接近歷史紀錄的市場巔峰。

CNBC's吉姆·克萊默(Jim Cramer)強烈建議切勿在波動巨大且具高度週期性的 AI 記憶體市場中進行高槓桿交易。儘管他從根本上十分看好高頻寬記憶體(HBM)的龐大需求,但他的核心原則是避免盲目追高,而是主張運用手邊的閒置現金「從小額進場並逢低買進」,絕非借錢操作。然而,即便有此告誡。

 

韓國股市已成美國提款機 还是 美國散戶投資人已成韓國公司提款機? 

 


 

2026年1月5日星期一

[Technology] Nvidia’s Next‑Gen AI Chips Are Now in Full Production

 

Nvidia’s Next‑Gen AI Chips Are Now in Full Production

  • CEO Jensen Huang announced at CES 2025 that Nvidia’s upcoming chip generation—the Rubin platform—is fully in production and already being tested by AI firms.

  • These chips can deliver 5× the AI computing performance of the previous generation when running chatbots and similar applications.

What the Rubin Platform Includes

  • Rubin consists of six different Nvidia chips.

  • The flagship configuration includes:

    • 72 GPU units

    • 36 new CPU units

  • Systems can be scaled into “pods” containing 1,000+ Rubin chips.

How Nvidia Achieved the Performance Jump

  • Huang said the gains come from a new proprietary data format Nvidia hopes the industry will adopt.

  • Despite only a 1.6× increase in transistor count, performance jumps dramatically due to this new data approach.

Competition Is Intensifying

  • Nvidia still dominates AI model training, but faces growing competition from:

    • AMD

    • Google (a customer and a rival)

    • Meta and others collaborating on alternative AI chips.

New Technologies Introduced

  • Context Memory Storage: Helps chatbots respond faster during long conversations at massive scale.

  • Co‑packaged optics networking switches: Compete with Broadcom and Cisco for linking thousands of machines efficiently.

Self‑Driving Car Software

  • Nvidia is releasing Alpamayo, a decision‑making system for autonomous vehicles.

  • Both the models and the training data will be open‑sourced to improve transparency and trust.

Strategic Moves

  • Nvidia recently acquired talent and chip tech from Groq, strengthening its AI hardware capabilities.

  • The company is also positioning Rubin to outperform older chips like the H200, which the U.S. government now allows to be sold to China.

2026年1月3日星期六

【Travel] Planning - 10‑DAY EAST COAST HISTORY ROAD TRIP

 

Boston → Plymouth → Newport → Long Island → NYC → Philadelphia → D.C. → Antietam → Gettysburg → Richmond → Williamsburg/Jamestown/Yorktown

🗓️ DAY‑BY‑DAY ITINERARY

Day 1 — Boston (Revolutionary America)

Themes: Revolution, early resistance Highlights:

  • Freedom Trail (16 sites)

  • Old North Church

  • Boston Tea Party Ships & Museum

  • Faneuil Hall

Overnight: Boston

Day 2 — Plymouth → Newport

Themes: Early settlement, Pilgrims, Wampanoag history

  • Plimoth Patuxet Museums

  • Plymouth Rock Drive to Newport, RI (1.5 hrs)

  • Explore colonial Old Quarter

  • Optional: Gilded Age mansions (contextual contrast)

Overnight: Newport

Day 3 — Ferry to Long Island (1 night stay)

Themes: Coastal colonial settlements, early maritime history Drive to New London, CT → take ferry to Orient Point, Long Island Explore:

  • Historic Greenport village

  • Shelter Island (optional)

  • Sag Harbor Whaling & Historical Museum (excellent settlement-era context)

Overnight: Long Island (Greenport or Sag Harbor)

Day 4 — Long Island → New York City

Drive to NYC (2–2.5 hrs depending on location) Themes: Immigration, early republic, modern identity

  • Ellis Island Immigration Museum

  • Statue of Liberty

  • Federal Hall (Washington’s inauguration site)

Overnight: NYC

Day 5 — Philadelphia (Birth of the Nation)

Drive NYC → Philadelphia (2 hrs) Themes: Revolution, Constitution, early government

  • Independence Hall

  • Liberty Bell

  • Museum of the American Revolution

  • Betsy Ross House (optional)

Overnight: Philadelphia

Day 6 — Baltimore → Washington, D.C.

Drive Philadelphia → Baltimore (1.5 hrs) Themes: War of 1812, early national identity

  • Fort McHenry

Continue to Washington, D.C. (1 hr) Themes: Founding ideals → national memory

  • National Mall monuments

  • National Archives (Declaration, Constitution)

Overnight: Washington, D.C.

Day 7 — Antietam → Harper’s Ferry

Drive D.C. → Antietam (1.5 hrs) Themes: Civil War turning points

  • Antietam National Battlefield (bloodiest single day)

Drive to Harper’s Ferry (30 min) Themes: Abolition, John Brown’s Raid

  • Historic Lower Town

  • Confluence of Potomac & Shenandoah

Overnight: Harper’s Ferry or Gettysburg

Day 8 — Gettysburg (Full Civil War immersion)

Drive to Gettysburg (1 hr) Themes: High-water mark of the Confederacy

  • Gettysburg National Military Park

  • Auto tour or ranger-led program

  • Eisenhower National Historic Site (optional)

Overnight: Gettysburg

Day 9 — Richmond (Civil War Capital)

Drive Gettysburg → Richmond (3.5 hrs) Themes: Confederate capital, industrial war

  • American Civil War Museum (Tredegar Iron Works)

  • Richmond National Battlefield

  • Confederate White House (contextual, not celebratory)

Overnight: Richmond

Day 10 — Jamestown → Williamsburg → Yorktown (Colonial Triangle)

Drive Richmond → Jamestown (1 hr) Themes: Settlement, Indigenous encounters

  • Jamestown Settlement

  • Historic Jamestowne (archaeology site)

Drive to Williamsburg (20 min) Themes: Colonial life, pre‑Revolution society

  • Colonial Williamsburg

Drive to Yorktown (20 min) Themes: Revolutionary War finale

  • Yorktown Battlefield (Cornwallis’ surrender)

Overnight: Williamsburg or Richmond END OF TRIP IN VIRGINIA

🧭 Why this 10‑day route works beautifully

  • It follows the chronological arc of American history from settlement → revolution → civil war.

  • Long Island fits naturally between Newport and NYC without detours.

  • Ending in Virginia lets you close the journey at the birthplace of English America and the final battlefield of the Revolution.

  • Driving segments are reasonable (no 7‑hour slogs).

  • Each day has a clear historical theme, perfect for your educational storytelling style.