HackerLangs
TopNewTrendsCommentsPastAskShowJobs

krasin

no profile record

comments

krasin
·5 miesięcy temu·discuss
> I'd like to see a system which attempts to reward people for the full transitive value of their work as long as the work remains valuable.

To a degree, this is what copyright was supposed to do.
krasin
·6 miesięcy temu·discuss
U-234 is ~3000x less radioactive than Pu-238, so having ~120g of U-234 is negligible.

I really fail to see a problem with these tiny amounts of non-brittle material embedded into a solid case. It's still very dangerous, but it's locally dangerous (meters away), not at the scale of whole countries.
krasin
·6 miesięcy temu·discuss
I found the specs for the fuel source: https://upload.wikimedia.org/wikipedia/en/e/e9/SNAP-19C_Moun...

The high-power unit had 300 grams of Pu-238 in 1965. Given its 87.7 years half-life, only 187g of Pu-238 remaining. It's very hard to do much damage with this amount of radioactive material.
krasin
·6 miesięcy temu·discuss
> that (checks notes) has the potential to poison most of North India.

How large is the amount of plutonium in there? I highly doubt that it has the claimed potential.
krasin
·7 miesięcy temu·discuss
I am usually running Claude Code in tmux on a Mac. Absolutely zero scroll issues (but I use tmux scroll for that, naturally). It's a delight.
krasin
·7 miesięcy temu·discuss
Apple raised iPad Pro prices in 2017 by $50 to address NAND memory chips price hikes from the vendors: https://www.cnbc.com/2017/09/13/ipad-pro-price-increase.html
krasin
·7 miesięcy temu·discuss
Quilter is a real deal. Hopefully, open source catches up at some point. But for now, it's Quilter or a lot of manual work & more design iterations.
krasin
·8 miesięcy temu·discuss
Yeah, this company (GeneralistAI) is, in my opinion, the most advanced robotics+AI company in the world. Slightly behind them Google DeepMind Robotics and Physical Intelligence, and then the rest.
krasin
·8 miesięcy temu·discuss
In the meantime, China is constructing nuclear cargo ships ([1], [2]) that will be able to transport 14,000 containers at full throttle (200MW) without a need to refuel for years.

Obviously, it's still not done, and yet to prove to be profitable, but their reactor design does suggest that they have a chance to make it work and replace a lot of CO2 emissions.

1. Original article, but paywall: https://www.scmp.com/news/china/science/article/3331031/chin...

2. Derivative (+based commentary), but no paywall: https://www.chosun.com/english/world-en/2025/11/07/MND3QUGUT...
krasin
·10 miesięcy temu·discuss
I refer to the RDNA4 instruction set manual ([1]), page 90, Table 41. WMMA Instructions.

They support FP8/BF8 with F32 accumulate and also IU4 with I32 accumulate. The max matrix size is 16x16. For comparison, NVIDIA Blackwell GB200 supports matrices up to 256x32 for FP8 and 256x96 for NVFP4.

This matters for overall throughput, as feeding a bigger matrix unit is actually cheaper in terms of memory bandwidth, as the number of FLOPs grows O(n^2) when increasing the size of a systolic array, while the number of inputs/outputs as O(n).

1. https://www.amd.com/content/dam/amd/en/documents/radeon-tech...

2. https://semianalysis.com/2025/06/23/nvidia-tensor-core-evolu...
krasin
·3 lata temu·discuss
JLCPCB would 3d print high-quality enclosures from a variety of UV resins: https://3d.jlcpcb.com/ and decently cheap.

The next best option is injection molding with PCBWay (or other similar provider): https://www.pcbway.com/rapid-prototyping/manufacture/?type=4...

An alternative is a sheet metal enclosure: https://www.pcbway.com/rapid-prototyping/manufacture/?type=4...

But 3d printing with JLCPCB is really the most convenient way unless you need a lot of parts (thousands) or the material properties of the UV resins would not be enough (high-temperature, outdoors, etc).
krasin
·3 lata temu·discuss
> Might make a good career then.

Is it, though? As much as the autorouters "known" to not work, I expect that a working one is less than 10 years away. Even for PCIe-level complexity.