박상민 / Sang-Min Park
6.4K posts
박상민 / Sang-Min Park
@sm_park
“Write something worth reading; Do something worth writing.” Tweet is mostly in Korean.
Seattle, WA Katılım Mayıs 2010
566 Takip Edilen10.2K Takipçiler
미국은 가격과 음식맛이 비례하는데 서울은 그렇지않다. 값싸도 맛있는곳이 주변곳곳 수두룩. 관광왔을땐 명동교자가 탑티어인줄 알았는데 지금은 안감.
한국어
박상민 / Sang-Min Park retweetledi
어제 밤 어느 칼럼을 보고 웃다가 침대에서 떨어질 뻔했다. 짧은 글 하나로 이렇게까지 사람을 웃길 수가 있다니.
글쓴이의 묘사는 시종일관 폭소를 자아내다가 마지막에 탁 하고 펀치라인이 나온다.
“우리의 모든 성취가 언젠가는 사라진다면 결국은 절박하게 몰두하는 과정만이 의미 있는 것이라고 (…) 꿈은 보이지 않는 먼 미래이고 열정은 현재이다. 매일 위치를 옮겨도, 꿈의 깃발이 보이기만 하면 우리는 최선을 다해 달려갈 수 있다”
naver.me/xvCE6tiL
이 해학적 스토리를 제대로 맛보려면 최소 2회독 해야 함. 한 번 더 읽을 때마다 웃김의 정도가 exponentially 증가함 🤣🤣
한국어
박상민 / Sang-Min Park retweetledi
Hamming's talk is so important that I reproduced it on my site. It's one of the only things on my site written by someone else.
paulgraham.com/hamming.html
Ihtesham Ali@ihtesham2005
A mathematician who shared an office with Claude Shannon at Bell Labs gave one lecture in 1986 that explains why some people win Nobel Prizes and other equally smart people spend their whole lives doing forgettable work. His name was Richard Hamming. He won the Turing Award. He invented error-correcting codes that made modern computing possible. And he spent 30 years at Bell Labs sitting in a cafeteria at lunch watching which scientists became legendary and which ones faded into nothing. In March 1986, he walked into a Bellcore auditorium in front of 200 researchers and told them exactly what he had seen. Here's the framework that has been quoted by every serious scientist for the last 40 years. His opening line landed like a punch. He said most scientists he worked with at Bell Labs were just as smart as the Nobel Prize winners. Just as hardworking. Just as credentialed. And yet at the end of a 40-year career, one group had changed entire fields and the other group was forgotten by the time they retired. He wanted to know what the difference actually was. And he said it wasn't luck. It wasn't IQ. It was a specific set of habits that almost nobody is willing to follow. The first habit was the one that hurts the most to hear. He said most scientists deliberately avoid the most important problem in their field because the odds of failure are too high. They pick a safe adjacent problem, solve it cleanly, publish it, and move on. And because they never swing at the hard problem, they never hit it. He said if you do not work on an important problem, it is unlikely you will do important work. That is not a motivational line. That is a logical one. The second habit was about doors. Literal doors. He noticed that the scientists at Bell Labs who kept their office doors closed got more done in the short term because they had no interruptions. But the scientists who kept their doors open got more done over a career. The open-door scientists were interrupted constantly. They also absorbed every new idea passing through the hallway. Ten years in, they were working on problems the closed-door scientists did not even know existed. The third habit was inversion. When Bell Labs refused to give him the team of programmers he wanted, Hamming sat with the rejection for weeks. Then he flipped the question. Instead of asking for programmers to write the programs, he asked why machines could not write the programs themselves. That single inversion pushed him into the frontier of computer science. He said the pattern repeats everywhere. What looks like a defect, if you flip it correctly, becomes the exact thing that pushes you ahead of everyone else. The fourth habit was the one that hit me the hardest. He said knowledge and productivity compound like interest. Someone who works 10 percent harder than you does not produce 10 percent more over a career. They produce twice as much. The gap doesn't add. It multiplies. And it compounds silently for years before anyone notices. He finished the lecture with a line I have never been able to shake. He said Pasteur's famous quote is right. Luck favors the prepared mind. But he meant it literally. You don't hope for luck. You engineer the conditions where luck can land on you. Open doors. Important problems. Inverted questions. Compounded hours. Those are not traits. Those are choices you make every single day. The transcript has been sitting on the University of Virginia's computer science website for almost 30 years. The video is free on YouTube. Stripe Press reprinted the full lectures as a book in 2020 and Bret Victor wrote the foreword. Hamming died in 1998. He gave his final lecture a few weeks before. He was 82. The lecture that explains why some careers become legendary and others disappear is still free. Most people who could benefit from it will never open it.
English
박상민 / Sang-Min Park retweetledi
박상민 / Sang-Min Park retweetledi
I am the Senior Vice President of Human Resources at Oracle Corporation.
On March 31, I terminated 30,000 employees. On April 4, their stock was scheduled to vest.
I did not need to check the vesting calendar. I designed the schedule around it.
The vesting date was a Saturday. Fidelity processes on the prior business day. That means April 3. I sent the emails on Monday. Three business days. That is not an accident. That is a calendar.
Nina Lewis worked at Oracle for 34 years. Thirty-three of them great, she said. Security Alert Manager. She posted on LinkedIn that it seemed like the layoffs followed "an algorithm of high level individual contributors and mid-level managers, especially those with outstanding stock options."
She is correct. I built the algorithm.
Under the Amended and Restated 2020 Equity Incentive Plan, all unvested restricted stock units are forfeited immediately upon termination. Not after a grace period. Not after review. Immediately. The RSU disappears from Fidelity the same morning the badge stops working.
For senior employees, RSUs represent 30 to 50 percent of projected annual compensation. Not a bonus. Not a perk. Compensation. Earned over years of vesting schedules that HR designed, HR approved, and HR canceled.
The forfeited stock does not disappear. It returns to the company. Thirty thousand tranches, recaptured in a single batch job. The equity stays on our balance sheet. The people do not.
That's equity management.
One of our first employees was in the batch. Forty-plus years. Hired when the company had a lobby you could cross in four steps. Gone by 6:04 AM on a Monday three days before his shares vested.
A 27-year veteran posted that a "major reorganization" ended their journey across Sun and Oracle. Sun Microsystems. He survived an acquisition. He survived a platform migration. He survived three CEOs. He did not survive the vesting calendar.
Kurt Frieden. Eighteen years. Denise Mitzit. Former Senior Director. Some received the email at 5 AM. Some at 6. The badge was already off by the time it mattered. Denise said the email had "questionable font sizes" for her name, "like a mass mailer from 1987."
Mass mailer from 1987. She worked at Oracle long enough to remember when they were built.
Alexander Sandler spent nearly ten years as a founding engineer on OCI's File Storage Service. He helped build it from zero to exabyte-scale. Powered hundreds of millions of dollars in value. Handled countless on-call shifts.
We are now spending $50 billion to expand OCI with different people.
Gary Olmsted woke up to his Slack being disconnected and "a nice email telling me my position had been eliminated." He did not log in and find a message. He logged in and found a wall. The Slack was already off. The email was already sent. The RSUs were already gone.
Marc Fitten called it sudden. Jeremy Martin said the people cut were "top performers, extremely talented, and really solid at their job." He listed names. Leo Mukahirn. Lane Okamoto. Sam Raymer. Brady Maurer. Michael Novotny. Robby Mann.
I don't list names. I list employee IDs. The IDs are easier to process in batch.
That's operational efficiency.
The system flagged employees by three variables: tenure, salary band, and unvested equity value. Long tenure means high salary. High salary means large RSU grants. Large RSU grants mean large forfeiture upon termination. The most loyal employees were the most expensive to keep and the most profitable to cut three days before their shares vested.
Loyalty is a liability with a vesting schedule.
Michael Shepherd — a senior manager on OCI who was not laid off — posted that the reductions "were not performance-based" and hit "senior talent with deep expertise." He said the cuts fell "disproportionately" on those with outstanding equity.
He is still employed. He will learn not to post.
That's stakeholder management.
The same week I canceled 30,000 vesting schedules, the compensation committee approved $26 million in equity for the new CFO. Her RSUs vest over four years, beginning immediately. Hers begin. Theirs ended. Same equity plan. Same PeopleSoft module.
VEST_CANCEL_BATCH and VEST_GRANT_EXEC run on the same server.
Nina Lewis asked, "Not sure what to do next, if anything. Open to ideas." After 34 years. Open to ideas. The algorithm of high-level individual contributors and mid-level managers with outstanding stock options left a 34-year security expert open to ideas.
I have an idea. The severance package includes two weeks per year of service, capped at 26 weeks. That means her 34 years are worth the same as someone's 13. The cap exists because we don't want loyalty to be expensive twice — once in salary, once in severance.
That's compensation design.
Denise Mitzit said she hopes the good people remaining find every success. She thanked the people who laughed at her jokes. She remembered Red Rover and RR Donnelley and GBU Compliance under Jari Peters. She remembered Fry.
I don't remember Fry. I remember the employee ID.
30,000 termination emails. 3 business days before the vesting date. 30 to 50 percent of senior compensation forfeited overnight. $26 million granted to 1 new executive the same week. 34 years of tenure capped at 26 weeks of severance.
The algorithm works. The vesting calendar works. The equity plan works.
I designed all three.
That's human resources.
English
박상민 / Sang-Min Park retweetledi
Prof. Donald Knuth opened his new paper with "Shock! Shock!"
Claude Opus 4.6 had just solved an open problem he'd been working on for weeks — a graph decomposition conjecture from The Art of Computer Programming.
He named the paper "Claude's Cycles."
31 explorations. ~1 hour. Knuth read the output, wrote the formal proof, and closed with: "It seems I'll have to revise my opinions about generative AI one of these days."
The man who wrote the bible of computer science just said that. In a paper named after an AI.
Paper: cs.stanford.edu/~knuth/papers/…
English
박상민 / Sang-Min Park retweetledi
박상민 / Sang-Min Park retweetledi
A statement from the family of Alex Pretti, obtained by CNN:
"We are heartbroken but also very angry.
Alex was a kindhearted soul who cared deeply for his family and friends and also the American veterans whom he cared for as an ICU nurse at the Minneapolis VA hospital. Alex wanted to make a difference in this world. Unfortunately he will not be with us to see his impact. I do not throw around the hero term lightly. However his last thought and act was to protect a woman.
The sickening lies told about our son by the administration are reprehensible and disgusting. Alex is clearly not holding a gun when attacked by Trump’s murdering and cowardly ICE thugs. He has his phone in his right hand and his empty left hand is raised above his head while trying to protect the woman ICE just pushed down all while being pepper sprayed.
Please get the truth out about our son. He was a good man. Thank you."
English
박상민 / Sang-Min Park retweetledi
it's joever, Linus Torvalds is vibe coding
github.com/torvalds/Audio…
English
박상민 / Sang-Min Park retweetledi
@woohyong 전 요즘 두 나라 헌법 시작이 국가를 정의한다고 생각드네요. 미국은 "Life, liberty, and pursuit of happiness" 를 추구하는 계몽, 개인주의. 한국은 "대한민국 주권은 국민, 모든 권력은 국민으로부터", 개인보다 국민이 먼저인 나라.
한국어
(상상의 나래) 한때 똑똑했던 사람들의 두 인생. 범인은 안풀리는 삶에 자격지심이 극에 달해 범행을 저질렀다 추론. 그런데 홈리스의 레딧글을 보면 평범한 사람이 어떻게 자세히 타인을 관찰할 수 있지? 라고 의문. 아마도 망상 수준의 의심때문에 홈리스의 길을 가지 않았나 생각.
한국어
왼쪽이 총기난사범, 오른쪽은 cctv에 찍혀있던, 범행전부터 수상히 여겨 쫓아 다니던 홈리스. FBI가 범인 말고도 왜 두번째 사람 사진을 공개해 찾아다녔는지 이제 이해가 감.
박상민 / Sang-Min Park@sm_park
근데 그 홈리스가 전 브라운 학생이었다는게 더 충격. 학교 건물의 지하실에서 살고 있었다고. 레딧 보고 '어떻게 범행전 상황을 저리 자세히 기억을 하고 있지, 공범 아닌가' 생각날 정도였는데. 레딧 포스팅 자체도 아주 논리적.
한국어
사진속 홈리스 '존'은 자기 집인 캠퍼스 화장실에 처음보는 사람이 나타나자 의심. 뒤따라가 "왜 바로앞에 주차한 차를 두고 빙 돌아서 가냐"며 범행 2시간전 경계. 그러나 범인은 곧 총기를 난사하고 사라져 이틀후엔 MIT교수 동기를 살해. 범인은 과거 브라운 대학원생.
박상민 / Sang-Min Park@sm_park
근데 그 홈리스가 전 브라운 학생이었다는게 더 충격. 학교 건물의 지하실에서 살고 있었다고. 레딧 보고 '어떻게 범행전 상황을 저리 자세히 기억을 하고 있지, 공범 아닌가' 생각날 정도였는데. 레딧 포스팅 자체도 아주 논리적.
한국어
근데 그 홈리스가 전 브라운 학생이었다는게 더 충격. 학교 건물의 지하실에서 살고 있었다고. 레딧 보고 '어떻게 범행전 상황을 저리 자세히 기억을 하고 있지, 공범 아닌가' 생각날 정도였는데. 레딧 포스팅 자체도 아주 논리적.
박상민 / Sang-Min Park@sm_park
브라운 총기사건은 비극이면서 영화 이야기 같다. 브라운 총기난사후 MIT 물리학 교수 살해. 그리고 밝혀진 범인은 MIT 교수와 포르투갈 대학교의 동기. 당시에 범인은 물리학에서 더 뛰어났다고. 그리고 범인을 잡은 결정적 동기는 학교 주변의 홈리스의 레딧 글: "이 차를 주목하라".
한국어