Won Dong

기술을 알면 기술자가 되고, 기술의 흐름을 알면 분석가가 되고, 흐름의 맥락을 알면 이야기꾼이 된다.

"The Next Bottleneck After HBM Is HBF"... A Computing Pioneer's Prediction "I have been consistently paying close attention to High Bandwidth Flash (HBF). I'm also collaborating with semiconductor companies on this. HBF is highly likely to stand at the center of the next bottleneck — a surge in demand." David Patterson, professor at UC Berkeley, Turing Award laureate, and widely recognized as the architect of RISC (Reduced Instruction Set Computing — an approach that simplifies instructions to improve processing efficiency), made these remarks on April 30 (local time) when he met with reporters in San Francisco immediately after delivering a keynote at the Dreamy Next event. Asked about what comes after HBM (High Bandwidth Memory), which is currently in a supply-constrained bottleneck, Professor Patterson answered that HBF will emerge as the next focus. Specifically, he said, "Although a number of technical challenges still remain, the HBF being developed by companies such as SK hynix and SanDisk is a meaningful alternative in that it can deliver large capacity with low power consumption," adding, "Going forward, how efficiently data can be stored and delivered will become the critical variable." This past March, SK hynix announced that it had joined hands with U.S. flash memory company SanDisk to drive the global standardization of HBF. Unlike HBM, which stacks DRAM, HBF is built by stacking NAND flash — a non-volatile memory. Their roles are also distinct. While HBM serves as a fast computation aid, HBF is focused on storing the vast amounts of data that AI processes at high capacity. HBF is drawing attention as the AI inference market grows. The AI market is broadly divided into learning (training) and inference. Training is the process of feeding massive amounts of data to teach an AI model. Inference is the stage in which results are derived based on the trained data. In inference AI, the ability to continuously store and retrieve vast amounts of intermediate data — such as prior conversations, judgment outcomes, and task context — is crucial. This is because AI carries out reasoning by remembering context and building upon it. The problem is that all of this data is difficult to fit into HBM. Since HBM is optimized for handling data used immediately, its capacity itself is inherently limited. Moreover, given its high price, processing the enormous amounts of context data generated during inference using HBM alone would impose significant cost burdens. As a result, an environment has formed in which both HBM and HBF are needed simultaneously — a kind of division of labor. Domestic experts in Korea also anticipate that the importance of HBF will grow going forward. At an HBF research and technology development strategy briefing held this past February, Kim Jung-ho, professor in the School of Electrical and Electronic Engineering at KAIST, stated, "If the central processing unit (CPU) was the core in the PC era and low-power technology was the core in the smartphone era, memory will be the core of the AI era," adding, "What determines speed is HBM, and what determines capacity is HBF." He further predicted, "From 2038 onward, demand for HBF will surpass that of HBM."

그냥 상시 포켓몬센터를 만들자 이정도면 수요조사 충분히 했다고 생각해...

Evangeline Lilly has called out Disney for being “disgusting and horrible” after they laid off almost all of Marvel's visual development team. “SHAME ON YOU for turning your back on the people who built the power you are now using to throw them away.”

삼성전자가 애플의 DRAM 공급 계약을 애플이 이미지센서를 소니에서 삼성으로 바꾸는 조건으로 수락했다는 소식 이런 식이면 파운드리도 DRAM 공급을 무기로 하나씩 하나씩 채워넣을 지도?

This is just one eval, but it's an important one - UK AISI’s cyber range tests long-horizon, agentic capability. 5.5 performs similarly to Mythos. The risks for frontier models are real. But we do our best to deploy AI people can actually use - through hard work on mitigations.

@FightOn_J 저는 땅을 파서 그것을 넣고 나뭇가지, 종이, 흙으로 덮어서 함정을 만들곤 했네요.. 반성중

동네 예술 공연 캘린더가 와서 보는데, Pelin Su Yavuz 공연이 있네 11/14 12PM Shaw-Roxbury Branch of the Boston Public Library

히로미, 레이베이의 뒤를 잇는 18살 보스턴/버클리 출신 재즈 피아니스트 Pelin Su Yavuz. BSO에 있다니 어린이 리허설하다 마주칠 수도 있겠다. youtu.be/NPBjTIaj2HE?fe… bso.org/profiles/pelin…

북한 정찰총국 소속의 김수키·라자루스·템프허밋·안다리엘 등..체이널리시스가 발표한 ‘2023 가상자산 범죄 보고서’에 따르면 2022년,..피해액이 38억 달러(약 4조 9,400억 원)를 기록해 사상 최대 피해액을 경신했다. 특히 라자루스 그룹이 17억 달러(2조 1,000억원) 상당의 가상자산을 훔쳤다.

북한이 미국의 신뢰(?)와 한일분쟁, 국내뉴스등에 밀려있는데, 이 가운데 핵활동을 재개했다고. '북한이 이 같은 해킹으로 탈취한 금액이 최대 20억달러에 이른다고 전했다.' 북한이 미국의 강력한 제재상황에선 힘들어보였는데 가상화폐 해킹등의 사이버 테러로 수익을 창출중m.yna.co.kr/kr/contents/?c…

2022년 황당한 예측이 일부 현실이 되고 있다. 주가와 별개로 수요와 맞물려 공급만 잘 맞아떨어지면 파운드리에서 좋은 결과가 나올지도.

타래에서 했던 얘기. 14A-E 뿐만 아니라 10A가 2027에 나오면 삼성, TSMC를 누르고 최초 1nm 공정 타이틀을 획득. 인텔 파운드리, 삼성보다 한박자 빠르다…'1.4나노'로 도발 sedaily.com/NewsView/2D6LU…

?? 왜 최대 메모리가 16GB지? #AppleEvent

$JOBY 뉴욕시 시범 운행 시작. 멀리서는 거의 소리가 안 들리네.

$JOBY 가 G-4 단계에서 경쟁사인 $ACHR 를 앞질러 시험 기체 조립 단계에 돌입. 이제 mass production이 코 앞에 와있다. 이미 뉴욕 헬기 업체 Blade (최근 사고난 회사X) 인수를 완료하고, 우버로 통합된 eVTOL/헬리콥터 연계를 지원 예정. 현기차 Supernal 은 첫 단계에서 아직도 헤매는 중

질문: 전기모터가 제트엔진에 필적할 만한 성능이 나오나요? 답변: 아니요. 하지만, 지멘스 Emrax 268 같은 높은 power-to-weight ratio (무게 대비 마력)을 가진 모터가 등장하면서 상용 비행기를 만들 수 있는 수준에 도달하고 있습니다. en.wikipedia.org/wiki/Power-to-…

🇺🇦⚔️🇷🇺 Ukraine: GTA est désormais aussi utilisé comme plateforme de simulation pour former des opérateurs de drones FPV au sein de l’armée ukrainienne.

@writer_evolutn 헉 그렇군요. 그게 핵분열 불빛이었었군요. 언제나 좋은 정보 감사합니다~

@fkiller 라돈은 라듐이 분해되며 나오는데요, 라듐은 예전에 야광시계 분침에 주로 도료처럼 사용되어서 지금은 다른 것으로 바꿔서 사용한다고 들었습니다. 예전에 어릴때 밤에 연두색 불빛 난다고 좋아했는데 ㅠㅠ 그게 아마도 라듐이었을 듯요 ㅠㅠ

라돈은 반감기가 3.8일인데 어떻게 집에서 나올 수 있어서 조심해야하는지(미국집 지하실에서 종종 나옴) 의문이 들었는데, 지하수나 지층의 라듐이 서서히 분열되면서 나오는 것이군요. 가스로 존재해서 폐에 들어가 분열하며 나온 알파선에 피폭되는 피해가 있을 수 있군요.

Eric Kripke says Donald Trump posting a photo of himself as Jesus ruined the Homelander as God joke in ‘THE BOYS’. “A month ago when we were talking about marketing, I was like, Homelander saying he’s God is so out there. We have to be careful about how we even introduce the idea to the public because they’ll say he’s gone too far and here we are. It’s just really hard to out-satire this world.” (Source: polygon.com/the-boys-showr…)

탄소동위원소 측정도 당시 대기 탄소동위원소 비율인데 그 비율을 나이테로 안다 이렇게만 들어서 이해가 안 갔었음. 근데 나이테 역시 연도마다 탄소가 반감되는 형태라서 이걸 제대로 구할려면 연도마다 각각 반감을 역산해서 연도별 비율을 구해야되는거였음. 이걸 알려줬으면 금방 이해가 됐을텐데

난 학교 과학 시간에 배운 탄소동위원소 측정이나 도플러 효과로 천체 거리 측정하는게 전혀 이해가 가지 않았는데, 개론이라 부족한 퍼즐조각이 있어서였다. 도플퍼 효과로 적색편이가 생겨도 기준점이 무엇인가가 빠진 조각이었는데, 원소들이 가지는 스펙트럼이 기준점이었음. 그냥 다 가르쳐주지.

세상에 공짜는 없다지만 사실 그냥 우리가 사회적으로 정하는 거니까 언젠간 모든 것이 공짜가 될지 모름. 모두가 그러기로 한다면…

‼️🚨 BREAKING: An AI found a Linux kernel zero-day that roots every distribution since 2017. The exploit fits in 732 bytes of Python. Patch your kernel ASAP. The vulnerability is CVE-2026-31431, nicknamed "Copy Fail," disclosed today by Theori. It has been sitting quietly in the Linux kernel for nine years. Most Linux privilege-escalation bugs are picky. They need a precise timing window (a "race"), or specific kernel addresses leaked from somewhere, or careful tuning per distribution. Copy Fail needs none of that. It is a straight-line logic mistake that works on the first try, every time, on every mainstream Linux box. The attacker just needs a normal user account on the machine. From there, the script asks the kernel to do some encryption work, abuses how that work is wired up, and ends up writing 4 bytes into a memory area called the "page cache" (Linux's high-speed copy of files in RAM). Those 4 bytes can be aimed at any program the system trusts, like /usr/bin/su, the shortcut to becoming root. Result: the next time anyone runs that program, it lets the attacker in as root. What should worry most: the corruption never touches the file on disk. It only exists in Linux's in-memory copy of that file. If you imaged the hard drive afterwards, the on-disk file would match the official package hash exactly. Reboot the machine, or just put it under memory pressure (any normal system load that needs the RAM), and the cached copy reloads fresh from disk. Containers do not help either. The page cache is shared across the whole host, so a process inside a container can use this bug to compromise the underlying server and reach into other tenants. The original sin was a 2017 "in-place optimization" in a kernel crypto module called algif_aead. It was meant to make encryption slightly faster. The change broke a critical safety assumption, and nobody noticed for nine years. That bug then rode every kernel update from 2017 to today. This vulnerability affects the following: 🔴 Shared servers (dev boxes, jump hosts, build servers): any user becomes root 🔴 Kubernetes and container clusters: one compromised pod escapes to the host 🔴 CI runners (GitHub Actions, GitLab, Jenkins): a malicious pull request becomes root on the runner 🔴 Cloud platforms running user code (notebooks, agent sandboxes, serverless functions): a tenant becomes host root Timeline: 🔴 March 23, 2026: reported to the Linux kernel security team 🔴 April 1: patch committed to mainline (commit a664bf3d603d) 🔴 April 22: CVE assigned 🔴 April 29: public disclosure Mitigation: update your kernel to a build that includes mainline commit a664bf3d603d. If you cannot patch immediately, turn off the vulnerable module: echo "install algif_aead /bin/false" > /etc/modprobe.d/disable-algif.conf rmmod algif_aead 2>/dev/null || true For environments that run untrusted code (containers, sandboxes, CI runners), block access to the kernel's AF_ALG crypto interface entirely, even after patching. Almost nothing legitimate needs it, and blocking it shuts the door on this whole class of bug...

ソニーのFreFlowですね。 照明の制御に使われるDMX信号を特小帯920MHzのRF信号に変換、ペンライトに送信して点灯制御。 観客はスマホで客席のQRコードを読取りBluetoothを介してペンラに座席番号を登録することで、より精密な制御が可能になっている。 制御可能台数は無制限。 sonymusicsolutions.co.jp/s/sms/diary/de…

난 일 잘하면 꼭 언급을 해주는 편인데, 일 잘하는데 인정 못 받는 애들이 한 트럭인데, 다 나한테 하소연해서 좀 피곤해졌음;; 저는 인정은 해줘도 뭘 어떻게 해드릴 수가 없습니다..