Dr. David-Benjamin Grys

I do three things in Munich/Cambridge: 1. Completely automate my electronics/software consultancy. All agent-run, no humans involved i.e. building PCBs, writing software, testing hardware. 2. I am running a sensors/systems startup in Munich doing very cool stuff - still stealth but soon to go public. 3. Old-fashioned consulting to fund the two above.

Könnte ohne Claude nicht mehr leben. Alles geht deutlich schneller - Quotes, Rechnungen, Belege, Recherche, Dokumentation. Werde jetzt eine RTX6000Pro für Qwen zur Verfügung stellen, dann gibt es Vollzugriff auf Businessmails. Dann natürlich sehr hilfreich im technischen Entwicklungsbereich. Möchte da nicht zu viel verraten ;)

Wer von euch ist absolute Maschine mit Claude und nutzt es für sein Business! Bitte keine Leute die nur damit rumspielen und irgendwelche Webseites damit bauen! Geht mir um Automationen, Prozesse, Effizienzsteigerungen. Danke 🙏🏼

RF filter design was solved a long time ago. Synthesising commensurate length or stepped impedance filters is simple. Depending on the geometry, it’s even purely analytical. The real problem is mastering manufacturing tolerances. Still some great work!

@build_boost I saw the measurement: S11 is mostly much larger than -10dB, more a reflector than a filter.

So a few things here 1 - This is not novel. It has been done before. 2 - This takes up more board space than both other designs, on expensive substrate. 3 - this is not a good design. It is prone to issues with tolerances from board house to board house, and run to run, due to the shape. 4 - It is not practically tuneable because it is effectively one complex lumped element. That means you have higher reject rates and rework time goes up or more likely is just not practical. A halfway experienced tech can be trained to tune the first two if they come in off frequency due to tolerance variations. I remain extremely unimpressed by these kind of "AI" driven RF designs like this. To claim it's the first, "alien geometry" -- this is hype shit to get a YC investment from investors who can't do a technical analysis. Either the founders are lying or don't know the prior art, and both are concerning. AI developing "alien" circuits like this instead of stringing together understandable, defineable circuit elements that can be tuned and modified is a gimmick at best and a grift at worst.

@_i_am_arya S21/S11 measurements vs simulation?

Today, we're announcing Heaviside, our foundation model for electromagnetism. Trained on tens of millions of designs and over 20 years of proprietary simulation data, Heaviside predicts electromagnetic behavior from geometry in 13ms, which is 800,000x faster than a commercial solver. Heaviside is not a language model, and it’s not a surrogate model. Heaviside marks a new class of foundation model for physics which understands the fundamental relationships between materials, the geometries and the electromagnetic fields they generate. We’re releasing a research preview of Heaviside in Atlas RF Studio, an interactive agentic sandbox where you describe the EM behavior you want and the model generates the physical structure that produces it. @arenaphysica , we believe the implications of this class of model extend well beyond RF, as the frontier of exquisite hardware is electromagnetically-governed: wireless communication, radar, power delivery, high-speed computing, and the interconnects inside every chip on earth. In the months ahead, we’re excited to scale up Heaviside to broader frequency ranges, design spaces, and to support silicon-level designs, and deploy it with our closest partners and collaborators in service of their biggest design challenges. If you’ve read our thesis, this is just Step 2 in our pursuit of electromagnetic superintelligence. Read the full announcement and try Atlas RF Studio…tell us what you think: arenaphysica.com/publications/r…

AI slop in React is really next level.

@xah_lee Play the piano.

no human can beat ai in chess. ever since 2005. no human can beat ai in go. ever since 2018. is it possible, to have a well defined task that human can do better?

@lagz152507 @yacineMTB Or employ an electronics engineer.

Genuinely all software engineers would benefit from a better understanding of the hardware they run on

@Sonntag1410 Die Deutschen sind ziemlich Analphabeten, was self-checkout angeht. Jede britische Oma kann das besser.

@andrewzacker Chopin competition every 5 years. That’s the real deal.

I moved to Warsaw 5 years ago 🇵🇱 Here's what I didn't expect: > it’s safe > it’s clean > fast internet > great startup community > a lot of amazing cafes > everything is new > bike lanes everywhere > cheaper than western world (€2k/m enough for COMFY life) > culture of working with laptops in coffee shops Cons? > weather is sh*t > people aren’t that friendly as in Asia (but it’s still much better than a fake US smile) I just spent 2 months in Asia building my startup from there. I was missing my routines in Warsaw. But honestly, you can build from anywhere. Just choose any city, build routines and lock in. The city matters less than you think 🌍.

@predict_addict It has one of the best university systems in the world, offering quality education for basically free.

Did you know Germany has a ridiculous number of universities? 422+ higher education institutions (109 full unis + 209 applied sciences) for ~84 million people — ~5 per million. Decentralized federalism gone wild. But here’s the catch: “free” tuition (for everyone, including internationals) funded by taxpayers has led to massive overcrowding. Lecture halls packed with hundreds, PhD students doing the teaching, strained resources, and quality suffering in many places. Taxpayers foot the bill while dropout rates linger and infrastructure groans. Is spreading thin really “accessibility,” or just unsustainable populism that dilutes excellence? Compare to more selective systems — maybe fewer, better-funded unis would serve students (and the economy) better than this bloated network.

@sparbuchfeinde Unternehmenssteuer in Polen ist 19% und 9% für kleine Unternehmen.

Unternehmenssteuern im internationalen Vergleich: 🇩🇪 Deutschland: 29,3% 🇮🇹 Italien: 22,9% 🇫🇷 Frankreich: 22,9% 🇨🇭 Schweiz: 13,5% 🇵🇱 Polen: 12,5% 🇭🇺 Ungarn: 10,9% Wo würdest du als Unternehmer eine neue Fabrik bauen? 🤔

@ky__zo I find it very difficult to gauge when to use ‘Ty’ instead of ‘Pan/Pani’. I don’t want to come across like some stuck-up but at the same time I don’t want to be impolite. Tricky.

this is literally THE WORST polish language feature (i'm polish) and i will die on that hill. it creates an artificial distance between strangers, requiring more mental effort to bridge that gap and talk to someone in a friendly way. this is one of the reasons why polish people seem very unfriendly for foreigners - we just grew up with a clear distinction between friends (hi, you) and strangers (good morning, Mr.,) it actually changes now with the new generation that's more 'english-influenced', but still the problem exists.

Es ist verständlich, aber der falsche Ansatz. Richtig wäre es, sich politisch zu vereinigen. Viele werden feststellen, dass es außerhalb Deutschlands noch größere Probleme gibt. Das sieht man erst, wenn man mal länger weg war. Außerdem kann nichts Heimat, Freunde und Familie ersetzen.

Laut FAZ planen 25% aller jungen Deutschen das Land zu verlassen. Die Aufkündigung des Generationenvertrags.

@kosa64 Waiting times for a visa in Poland are insane at the moment, so don't worry about it too much.

I’m seeing more and more reports about British citizens wanting to move to Poland. It’s a dangerous trend—they’ve already ruined their own country, and they could do the same to ours next.

@blury765 SIPPs und ISA (noch besser)

Amerika hat Roth-IRA UK hat SIPP Deutschland hat....🤔

@LuisenstadtF Da ist Deutschland wieder ein Einzelfall weltweit.

Aldi. 5 leere SB-Kassen. 1 normale Kasse. Die Kunden stehen in langer Reihe und warten darauf, abkassiert zu werden. Verstehe ich nicht. Penny das gleiche Problem. Die SB-Kassen werden gemieden. Verstehe ich nicht.

@la_divafabula Dann sind wir schneller beim NHS als wir denken. Das ist keine gute Idee.

Mein Vorschlag wir legen alle 94 gesetzlichen Krankenkassen zu einer zusammen. Und sparen uns 93 Vorstände, Management und anderen Gedöns. Deutsche Krankenversicherung kurz DKV.

@Tancrededib Munichmaxxing

Founders, what's your dream city to build from? >San Francisco >London >Bangalore >Paris

@TimoBuilds_ @X It will hit expats like me most. I think English should simply be exempt.

As a german citizen talking 99% in English to reach my audience, it will have a huge negative effect. My first thought is to finally focus more on other platforms like TT, LinkedIn, IG. So this decision is backfiring on @X and will force people like me talking to foreign people to focus more onto other platforms where our audience hangs out.

@nikitabier The American mind can’t comprehend that people live in several countries, speak several languages…

Starting Thursday, we'll be updating our revenue sharing incentives to better reward the content we want on X: We will be giving more weight to impressions from your home region—to encourage content that resonates with people in your country, in neighboring countries and people who speak your language. While we appreciate everyone's opinion on American politics, we hope this will disincentivize gaming the attention of US or Japanese accounts and instead, drive diverse conversations on the platform. We invite creators to start building an audience locally. X will be a much richer community when there's relevant posts for people in all parts of the world.