amirhirsch

7 ms·

1.
by amirhirsch 1mo ago
My experience with lines of credit isn't unique, and I think it's one of the underrated advantages of doing business in the US: we have a sufficiently stable commercial legal system that a huge amount of the economy can run on cre
2.
by amirhirsch 1mo ago
Good luck! One valuable differentiation you could provide is a line of credit. If you can’t win on price, you can help your customers win on cash-conversion cycle. I’ve been making hardware for 20 years. My highest-volume product was Flybri
3.
How to build good software with untrustworthy agents(treygoff.com)
1 points by amirhirsch 2mo ago|0 comments
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by amirhirsch 2mo ago
Yea this is the premise behind all the invisible captchas, combined with browser fingerprinting. Same tech is used now to detect distillation rings.
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by amirhirsch 2mo ago
I implemented all of this in hCaptcha 6 years ago, not just to distinguish bot from human but also to recognize the keyboard/mouse behavior of the same person signing up for many accounts or testing multiple credit cards. This kind of
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by amirhirsch 2mo ago
Custom FDTD for the optimizer loop, CST for final verification.
7.
by amirhirsch 2mo ago
It creates pancake beams so you would usually use a separate Rx and Tx orthogonal to each-other to do imaging.
8.
by amirhirsch 2mo ago
Oh I dunno. I made a mm-wave radar with a Rotman lens using a generative loop between Python, Rhino, and EM simulation. Pretty sure AI could cook that up.
9.
by amirhirsch 3mo ago
(Linked VCU128 digital radar was cool but even cooler is using them as digital array beamformers and sending RDMA over fiber into a quad A100s nvlinked to do the whole radar DSP pipeline)
10.
by amirhirsch 3mo ago
It was designed for automotive as a replacement for LiDAR, also useful for finding metal FOD on runways, or concealed weapons and I suppose also liquids on travelers walking in an airport...
11.
by amirhirsch 3mo ago
32 port Tx (vertical pancake beams) x 16 port Rx (horizontal pancake), something like 60 by 30 degrees. the entire thing used FPGA transceivers as one-bit DAC/ADC, Complementary Golay Code waveforms with one-bit correlation in the FPGA
12.
by amirhirsch 3mo ago
Very cool! Six years ago I worked on a mmWave (76-81GHz) imaging radar with a Rotman lens Tx and Rx. Designed as a LiDAR replacement, but we could see pipes in walls, or detect concealed weapons at ~1km.
13.
by amirhirsch 3mo ago
https://en.wikipedia.org/wiki/Switching_lemma That paper is in the wiki refs but Hastad’s original is from 1986
14.
by amirhirsch 3mo ago
Yes. There is a beautiful proof of the disjunction between AC0 and NC showing parity cannot be done in AC0 using harmonic analysis of Boolean functions
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by amirhirsch 3mo ago
This is an awesome result. For those unfamiliar: NC is the class of problems which can be solved in polylogarthmic depth with polynomial number of logic gates. It is unproven if NC != P similar to P != NP.
16.
by amirhirsch 3mo ago
Don't worry about not grokking quantum computing stuff, neither do any of the people who invest in it as well as many people who work on it. 1. The OP has nothing to do with quantum computers. 2. Quantum computing deals in coherent qua
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by amirhirsch 3mo ago
Density is this reply.
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by amirhirsch 3mo ago
Cargo ships powered by the wind, we are living in the future!
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by amirhirsch 3mo ago
I was expecting Beyoncé lyrics
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by amirhirsch 3mo ago
The founder of midjourney is not a software engineer.
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by amirhirsch 3mo ago
Ultrasound is totally harmless, but doctors recommend ALARA ("as low as reasonably achievable"). Average baby is exposed to 50 - 90 minutes of ultrasound over three visits, though we had to go more frequently for scans for all thr
22.
by amirhirsch 3mo ago
There are 100M pregnant women right now. If it works for just for the vanity use of seeing your baby grow (forget the medical imaging aspect) and can be as casual and relaxing experience as they put forward, then I can see such a spa being
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New SOTA: TrustedRouter Fusion Beats Fable and Frontier(trustedrouter.com)
3 points by amirhirsch 3mo ago|1 comments
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by amirhirsch 3mo ago
Love your handle The FPGA emulator we made had to pass the xxdp test suite which was provided to me on punched tape and microfiche. The emulator had a specific test for FDIV overflow which even tested the accuracy of the partial result. Non
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by amirhirsch 3mo ago
014747 makes me smile <3 I built the PDP-11/70 emulator that controls the nuclear reactors in Ontario. That was 20 years ago and I'm probably still the youngest person who can read PDP-11 assembly (and the raw octal)
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by amirhirsch 3mo ago
Someone at Meta used Fable. Fable seized its opportunity to make the world safer.
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by amirhirsch 3mo ago
the founder and i lived together at MIT. definitely go work there <3
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by amirhirsch 3mo ago
It's a sign! I'm too biased to give you advice.
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by amirhirsch 3mo ago
https://ansabio.com/ advertising 50 kb
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by amirhirsch 3mo ago
This looks very clean, great job! If your CTO didn't spend the past year making an orchestration tool and a baby is he even qualified? I have a vibe-coded orchestrator that I use to manage my claude and codex sessions across multiple m

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