Viewing profile — jrk

Commercial air travel is extremely competitive and has very low margins.

The Fed transitioned from QE to tightening almost 5 years ago.

It's not that you need to turn on some extra library backends and rebuild, it's that the abstractions themselves are fundamentally at odds with hitting peak performance on many thi…

To make "next to nothing" concrete: MIT EECS PhD students are currently paid about $4700/mo. This is substantially less than they'd make in industry, but it's around the US median …

The 1TW is the rated peak power output. It's essentially the same in space. The thing that changes is the average fraction of this sustained over time (due to day/night/seasons/atm…

The PyTorch version is using the GPU (with Metal Performance Shaders); this C version is currently using (in the docs I saw) a single CPU core, with AMX (via Apple Accelerate BLAS)…

Why are GPUs necessarily higher latency than TPUs? Both require roughly the same arithmetic intensity and use the same memory technology at roughly the same bandwidth.

Not sure when you last tried, but Gemini, Claude, and ChatGPT have all supported pretty effective PDF input for quite a while.

It is not only not that much more complex, it is often less complex. Higher-level services like PaaS (Heroku and above) genuinely do abstract a number of details. But EC2 is just r…

You know that AWS will come back up. You definitely don’t know whether your own instances will come back or if you’ll need to redeploy it all.

Yes but you can also do the same thing with autoregressive models just by making them smaller. This tradeoff always exists, the question is whether the Pareto curve for diffusion m…

I think they weren’t asking “why can’t Gemini 3, the model, just do good transcription,” they were asking “why can’t Gemini, the API/app, recognize the task as something best solve…

I think the point was not that gem-grade synthetic diamonds are ugly, but that, as industry masters gem-grade production, presumably below-gem-grade production (“ugly synthetic dia…

This is an established, though advanced, idea. Sourcegraph Amp ( https://sourcegraph.com/amp ) has had this exact feature built in for quite a while: "ask the oracle" triggered an …

It is a few generations behind: Blackwell is still on N4, which is an N5 variant. Meanwhile TSMC has been shipping N3 family processes in large volume products (Apple) for more tha…

If you go just a few posts back in Peter's own blog he has a video of himself doing exactly this: https://steipete.me/posts/2025/live-coding-session-building-... He has posted othe…

People of course often do read (and even modify) the model-generated code, but doing so is specifically not “vibe coding” according to the original definition, which was not meant …

Many people see top-line rate increases and assume the issue is supply cost, but transmission and distribution have become over 50% of cost everywhere I’ve lived, and are growing f…

eInk devices are very much not converging to 16:9 or wider aspect ratios. This device is intentionally the size and shape of a reporter's notebook, but there are virtually no other…

The OP is talking about fabrication technology, not end products. Even years into their delays getting to 10nm, Intel had more advanced fabrication technology than TSMC until N7 re…

Intel’s situation in 2025 is not comparable to the rest of big tech. They have lost technical leadership, bled market share, and started losing a ton of money in a hugely capital-i…

This is indeed a reasonable cost estimate for competitive short-term H100 rentals (source: much SemiAnalysis coverage, and my own exploration of the market), but there is a critica…

Simon Willison nailed exactly this 2 years ago: > I've been thinking about generative AI tools as "bicycles for the mind" (to borrow an old Steve Jobs line), but I think "electric …

The notion that Google is worse at carefully managing PII than a Wild West place like OpenAI (or Meta, or almost any major alternative) is…not an accurate characterization, in my e…