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pseudosudoer

257 karma · joined June 15, 2018

I enjoy poking a bit(s) of fun.
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pseudosudoer··on Show HN: Elevators
This is commonly referred to as the "dial-a-ride" problem, which is an optimization problem with a multi-variate cost. Back in college for my senior design project we built a multi-axis closed loop servo system which would emulate a slide guitar. The dial-a-ride problem is identical to optimizing travel for a string of notes/chords.
pseudosudoer··on Inverted Pendulum Logo
Delivering quality web solutions is out of my realm of expertise, so if I were to hand it off the experience would probably would probably be lack-luster.

ClosedBridge is my small consulting company in the embedded space, and I'm just spitballing ideas to bring eyes to it.

pseudosudoer··on Inverted Pendulum Logo
If you manage to move the cart to the rail limits it'll typically fall over and enter the swing up state.

With that said it's a pretty simple design, made more for the novelty of an interactive logo.

pseudosudoer··on Custom telescope mount using harmonic drives and ESP32
I really liked OpenSCAD as a concept, but when I started designing things that had a fair bit of complexity the rendering engine really shit the bed. This was a powerful rig as well.
pseudosudoer··on 3blue1brown YouTube Bitcoin video taken down as copyright violation
Every year it becomes clearer that Idiocracy was indeed a documentary.
pseudosudoer··on Nvidia bets on robotics to drive future growth
There are search spaces that are quite large that are used in optimal control. GPUs can be used to drastically accelerate finding a solution.

As an example, imagine you are given a height map, a 2D discrete search space overlayed in the height map, 4 legs, and robot dynamics for every configuration of the legs in their constrained workspace. Find the optimal toe placement of the 4 legs. Although a GPU isn't designed exactly to deal with this sort of problem, if it's framed as a reduction problem it still significantly out performs a multi core CPU.

pseudosudoer··on 'Obelisks': New class of life has been found in human digestive system
Any chance there is a correlation between Obelisks and autoimmune diseases?
pseudosudoer··on What Is Analog Computing?
I actually worked for a startup that makes tiny FPAA's (Field Programmable Analog Arrays) for the low powered battery market. Their major appeal was that you could reprogram the chip to synthesize a real analog network to offload the signal processing portion of your product for a tiny fraction of the power cost.

The key thing is that analog components are influenced much more by environmental fluctuations (think temperature, pressure, and manufacturing), which impacts the "compute" of an analog network. Their novelty was that the chip can be "trimmed" to offset these impacts using floating gate MOSFETs, the same that are used in flash memory, as an analog offset. It works surprisingly well, and I suspect if they can capture the low power market we'll see a revitalization of analog compute in the embedded space. It would be really exciting to see this enter the high bandwidth control system world!

pseudosudoer··on An infinite canvas for code exploration
I confused Sourcetrail and SourceGraph, didn't mean to spread misinformation on your product!
pseudosudoer··on An infinite canvas for code exploration
Yes you're right, my mistake!
pseudosudoer··on An infinite canvas for code exploration
Ideally this would be a standalone app (perhaps ported using electron) that I could run locally, and import codebases directly. Sourcegraph was on the right track, but eventually fizzled out unfortunately.

I would love to use a tool like this to navigate the unknown on rails!

pseudosudoer··on Terraform makes carbon neutral natural gas
Here's their company page. Might explain the use of word press...

https://terraformindustries.com/

pseudosudoer··on First-in-human implantation of bionic device to halt Crohn's disease (2023)
Your statements are true, but please present this information with nuance. Yes you have an increased risk of cancer, but it's a small percentage and not a guarantee. Untreated bowel disease is guaranteed to have side effects, horrible QoL, and a much higher risk of cancer than medications.

Prednisone is the one exception though, unless life is completely unlivable or you have a significant chance of death (typically from perforation) I would avoid it.

pseudosudoer··on Researchers trace a form of lupus back to a single mutation
I wonder what implications this has for other autoimmune diseases. I personally suffer from Ulcerative Colitis, and would love to see this kind of foundational research done instead of new sets of immunomodulatory drugs.
pseudosudoer··on The secretive rise of the 'overemployed'
I've considered a second job as well, but I'd have to skip out on my noon Jiu Jitsu classes and freedom to play Pickleball whenever I please. I'm paid well enough where the value my hobbies bring outweighs the extra income of a second job.
pseudosudoer··on Physicists create elusive particles that remember their pasts
Once the map between entanglement and exponential parallelism is clear, quantum computing becomes a breeze /s. Seriously though, entanglement is the root of what makes quantum computing useful.

One subset of problems that are solved exponentially faster are those that intersect with tensor products. Entanglement essentially "is" a tensor product of the probabilistic state space of two qubits.

pseudosudoer··on The Nanohertz Gravitational-Wave Detection Explained
You're essentially asking the same question after it's been answered. Space-time is the carrier that acts like a fabric, and some large cosmological mass is distorting that fabric.

The distortion of the fabric of space-time ripples throughout the entire universe at the speed of light, and spreads it's effect proportional to the inverse square related to distance.

pseudosudoer··on Show HN: Flux Copilot – Generative AI for hardware design
Hey Matthias, I'm curious whether/how you validate copilot output suggestions. Software bugs from generative AI can at least be reasonably tested for by developers, but it's certainly much more difficult to catch subtle bugs in hardware.
pseudosudoer··on Burnout
Although I didn't quit my job, having sizeable breaks between different jobs has been quite valuable. Time off between gigs feels more "free" because the expectations aren't the same when the break is finished.
pseudosudoer··on Amber Ale: Brewing Beer from 45M-Year-Old Yeast (2009)
I couldn't find any public statements from the brewery as to why they closed shop. A bit of snooping landed me on Raul's LinkedIn page (https://www.linkedin.com/in/raul-cano-00a4b6) where it doesn't seem to have the brewing company listed under his experience, so perhaps there was some falling out?
pseudosudoer··on There aren't enough remote jobs to go around
Anecdotally this is true for me. I was looking for a new role a few months ago, and a friend recommended me for a position that wasn't posted as remote, but made it clear I needed a remote position. The company is slowly shifting to allow fully remote workers, but hasn't started listed the positions as such. I've been the (hopefully successful) experiment for remote first hiring.
pseudosudoer··on What it feels like to be bullied out of a job you love
Wow, this is eerily similar to my previous employer (even down to the industry!). I loved loved loved the product, my role in it's success, and the problems I was tasked with solving. Unfortunately, humans can take all of the fun out of robots.

I too pride my self in stress resilience, but at a certain point I realized the joy in my work was offset by the annoyance of interpersonal issues. Leaving the company was bittersweet. I was still going to work in robotics, but it certainly wasn't as "cool". Now that it's been a few months at my new gig, I realize my QoL is much better as I actually enjoy the people I primarily work with.

Providing ultimatums to upper management may cure your woes, but you have to be willing back up the consequences you promised. So if action isn't taken by the CEO you'll need to fulfill your promise of leaving, or at least get an offer to show you're serious. If things don't change when you show your strongest hand, that's definitely a sign it's time to leave.

pseudosudoer··on Gödel, Escher, Bach: an in-depth explainer
While I'm not sure it requires "less maturity", DH released a subsequent book titled "I am a strange loop" which is an attempt to condense his ideas from GEB.
pseudosudoer··on Real-Time Error Correction for Quantum Computing
This reads like it's an improvement for logical qbits, but we still haven't closed in on the holy grail of the completely stable logical qbit. I'm very excited to see progress in the quantum computing space over the next few years, and hope the provability of useful computing can be achieved quite soon.

It's kind of concerning that most of the state of the art research is coming out of private institutions. What is the private timeline executives expect, and what happens to the research if those expectations aren't met? That's partially why I'm hoping to see actual useful application soon, to ensure that private investor attraction stays vested.

pseudosudoer··on The Real Story of Pixar
I'm glad someone stood up to Jobs, what a complete and utter asshole. Nothing says job security like telling your boss that their demands are "bullshit"
pseudosudoer··on New exotic matter particle, a tetraquark, discovered at CERN
Don't worry, I'll just use a sophon to revert your memory.
pseudosudoer··on Tune Your PID Controller
I always love stories like this. When you first join a company who's product you admire, I feel like the implicit assumption is that they know what they're doing. Then after some detective work as a curious noobster you realize that everyone is just as clueless as you are!
pseudosudoer··on Teach Yourself Demoscene in 14 Days
Ever since I had discovered shadertoy I've been searching for a consolidated source like this. I have a decent graphics background after taking a handful undergrad courses, but most of the producers on shadertoy just seem like magicians comparatively. Very excited to check this out!
pseudosudoer··on What can mRNA treat next?
You're correct, doctors/biologists still do not know the root cause of IBD (UC/Chrons). In fact, most autoimmune diseases are quite poorly understood due to the vast dimensional space that can influence the human immune system. If there is evidence that it could be controlled via an mRNA vaccine, it would give me much hope for the future of controlling autoimmune diseases without consistent drug intervention or surgery.
pseudosudoer··on What can mRNA treat next?
I haven't read anything related to treating autoimmune diseases with mRNA, that would be quite exciting. Do you happen to have a reference for this?

I have Ulcerative Colitis, which is a form of an autoimmune disease. A vaccine as a cure would be a game changer.

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