<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: Tarrosion</title><link>https://news.ycombinator.com/user?id=Tarrosion</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Wed, 15 Apr 2026 20:44:00 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=Tarrosion" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by Tarrosion in "Lindenmayer.jl: Defining recursive patterns in Julia"]]></title><description><![CDATA[
<p>This author is really prolific in the Julia visualization ecosystem. One of my favorite projects from them is actually quite useful outside Julia: a super minimal but slick Unicode character lookup, glyphy.info.</p>
]]></description><pubDate>Fri, 20 Feb 2026 11:44:17 +0000</pubDate><link>https://news.ycombinator.com/item?id=47086789</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=47086789</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47086789</guid></item><item><title><![CDATA[New comment by Tarrosion in "Art of Roads in Games"]]></title><description><![CDATA[
<p>[citation needed] that some combination of "New Urbanism, traditional neighbourhood design, streetcar suburbs, one-way streets, bike paths, walking paths, mixed-zone walkable villages (light commercial with residential), smaller single-family houses and duplexes, triplexes, houses behind houses." is not in fact optimal! (For certain objective functions)</p>
]]></description><pubDate>Mon, 09 Feb 2026 04:01:30 +0000</pubDate><link>https://news.ycombinator.com/item?id=46941431</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=46941431</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46941431</guid></item><item><title><![CDATA[New comment by Tarrosion in "Ask HN: Share your personal website"]]></title><description><![CDATA[
<p>sparsely updated blog: <a href="https://evanfields.net" rel="nofollow">https://evanfields.net</a></p>
]]></description><pubDate>Wed, 14 Jan 2026 21:30:26 +0000</pubDate><link>https://news.ycombinator.com/item?id=46623818</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=46623818</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46623818</guid></item><item><title><![CDATA[New comment by Tarrosion in "Show HN: Mysti – Claude, Codex, and Gemini debate your code, then synthesize"]]></title><description><![CDATA[
<p>> Is multi-agent collaboration actually useful or am I just solving my own niche problem?<p>I often write with Claude, and at work we have Gemini code reviews on GitHub; definitely these two catch different things. I'd be excited to have them working together in parallel in a nice interface.<p>If our ops team gives this a thumbs-up security wise I'll be excited to try it out when back at work.</p>
]]></description><pubDate>Sat, 27 Dec 2025 12:28:42 +0000</pubDate><link>https://news.ycombinator.com/item?id=46401376</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=46401376</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46401376</guid></item><item><title><![CDATA[New comment by Tarrosion in "Claude 4 System Card"]]></title><description><![CDATA[
<p>I'm finding 4 Opus good, but 4 Sonnet a bit underwhelming: <a href="https://evanfields.net/Claude-4/" rel="nofollow">https://evanfields.net/Claude-4/</a></p>
]]></description><pubDate>Sun, 25 May 2025 20:13:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=44090671</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=44090671</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44090671</guid></item><item><title><![CDATA[New comment by Tarrosion in "New horizons for Julia"]]></title><description><![CDATA[
<p>I can confirm this has been true since at least v0.4!</p>
]]></description><pubDate>Thu, 20 Feb 2025 20:55:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=43120066</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=43120066</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43120066</guid></item><item><title><![CDATA[New comment by Tarrosion in "Show HN: Kate's App"]]></title><description><![CDATA[
<p>I'm sorry for your loss, and I hope that helping others through this project helps you find some solace. IMHO, it's a mark of character that your response to having a problem is "I want to help other people so they suffer this problem less than I did."</p>
]]></description><pubDate>Thu, 09 Jan 2025 19:02:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=42648794</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=42648794</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42648794</guid></item><item><title><![CDATA[New comment by Tarrosion in "When Is Insurance Worth It?"]]></title><description><![CDATA[
<p>Whoops forgot the link <a href="https://entropicthoughts.com/the-misunderstood-kelly-criterion" rel="nofollow">https://entropicthoughts.com/the-misunderstood-kelly-criteri...</a></p>
]]></description><pubDate>Sat, 21 Dec 2024 23:33:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=42483205</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=42483205</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42483205</guid></item><item><title><![CDATA[New comment by Tarrosion in "When Is Insurance Worth It?"]]></title><description><![CDATA[
<p>This makes sense in the context of trying to maximize log wealth (or I think any concave function of wealth, though the arithmetic is different). But in one of OP's other articles [1], he says the Kelly criterion doesn't require trying to maximize log-wealth, that this is just a common misconception -- all that's required is maximizing something growing geometrically over time.<p>This I don't understand, maybe someone help me out? Say the real growth rate of capital (or interest rate available to me, whatever) is 2%/year and I have a 10 year time horizon. So $1.00 today is ~$1.22 in 10 years. More generally, if I have wealth X today I will have 1.22X in 10 years. And if X is not a constant but a random variable and I want to maximize future expected wealth (not log wealth), that's just max(E[1.22X]) and by linearity of expectation I should just maximize wealth today to maximize in 10 years time.<p>So Kelly being appropriate must have some other conditions, right? Wanting to maximize log wealth is surely sufficient (and individually probably ~rational). What else?<p>[1]</p>
]]></description><pubDate>Sat, 21 Dec 2024 20:17:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=42481975</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=42481975</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42481975</guid></item><item><title><![CDATA[New comment by Tarrosion in "Evolving my ergonomic setup (or, my laptop with extra steps)"]]></title><description><![CDATA[
<p>OP, you have a comment there about mouse support in the Keyboardio. I've been using a Keyboardio since 2019 and haven't much tried the mouse support -- any advice? How did you set it up?</p>
]]></description><pubDate>Wed, 11 Dec 2024 19:01:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=42391428</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=42391428</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42391428</guid></item><item><title><![CDATA[New comment by Tarrosion in "Micrograd.jl"]]></title><description><![CDATA[
<p>I'm curious what kind of slow IO is a pain point for you -- I was surprised to read this comment because I normally think of Julia IO being pretty fast. I don't doubt there are cases where the Julia experience is slower than in other languages, I'm just curious what you're encountering since my experience is the opposite.<p>Tiny example (which blends Julia-the-language and Julia-the-ecosystem, for better and worse): I just timed reading the most recent CSV I generated in real life, a relatively small 14k rows x 19 columns. 10ms in Julia+CSV+DataFrames, 37ms in Python+Pandas...ie much faster in Julia but also not a pain point either way.</p>
]]></description><pubDate>Fri, 30 Aug 2024 14:48:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=41401260</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=41401260</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41401260</guid></item><item><title><![CDATA[New comment by Tarrosion in "GPUs Go Brrr"]]></title><description><![CDATA[
<p>Why don't gradients vanish in large scale LLMs?</p>
]]></description><pubDate>Tue, 14 May 2024 17:49:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=40357924</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=40357924</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40357924</guid></item><item><title><![CDATA[New comment by Tarrosion in "GPUs Go Brrr"]]></title><description><![CDATA[
<p>How do modern foundation models avoid multi-layer perceptron scaling issues? Don't they have big feed-forward components in addition to the transformers?</p>
]]></description><pubDate>Mon, 13 May 2024 16:26:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=40345045</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=40345045</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40345045</guid></item><item><title><![CDATA[New comment by Tarrosion in "Ask HN: Who wants to be hired? (May 2024)"]]></title><description><![CDATA[
<p>Location: Cambridge, MA, USA [Boston/Somerville in case anyone is text-searching]<p>Remote: strongly prefer in person or hybrid<p>Willing to relocate: I'm very happy in the Boston area, so only under extraordinary circumstances<p>Technologies: data science, machine learning, technical communication, simulation, optimization, physically motivated models, heuristics; Julia, Python (Django, numpy, scipy, sklearn, cupy, pandas), AWS, Postgres/Postgis, Snowflake, Gurobi, NLopt, etc.<p>Resume: <a href="https://www.dropbox.com/scl/fi/wevhopcf81vx6vdoarn5a/efields_2024.pdf?rlkey=hcs8ae8jw7uswrzmgsca781lk&dl=0" rel="nofollow">https://www.dropbox.com/scl/fi/wevhopcf81vx6vdoarn5a/efields...</a><p>Email: in the resume<p>Blurb: PhD in operations research -> startup employee #2 -> scale startup, gradually moving from data science IC to VP of data science + software engineering -> now looking for mission-meaningful hands-on technical work. I'm particularly good at technical communication as well as translating from the physical world (science/business) to math models. Open to companies of any size, especially motivated by the biosecurity, biotech, robotics, and clean energy sectors.<p>Something cool I built that's not work related: <a href="https://nomai-writing.com/" rel="nofollow">https://nomai-writing.com/</a> in the spirit of Outer Wilds</p>
]]></description><pubDate>Wed, 01 May 2024 19:25:24 +0000</pubDate><link>https://news.ycombinator.com/item?id=40228097</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=40228097</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=40228097</guid></item><item><title><![CDATA[New comment by Tarrosion in "Ask HN: Who wants to be hired? (April 2024)"]]></title><description><![CDATA[
<p>Location: Cambridge, MA, USA [Boston/Somerville in case anyone is text-searching]<p>Remote: strongly prefer in person or hybrid<p>Willing to relocate: I'm very happy in the Boston area, so only under extraordinary circumstances<p>Technologies: data science, machine learning, technical communication, simulation, optimization, physically motivated models, heuristics; Julia, Python (Django, numpy, scipy, sklearn, cupy, pandas), AWS, Postgres/Postgis, Snowflake, Gurobi, NLopt, etc.<p>Resume: <a href="https://www.dropbox.com/scl/fi/wevhopcf81vx6vdoarn5a/efields_2024.pdf?rlkey=hcs8ae8jw7uswrzmgsca781lk&dl=0" rel="nofollow">https://www.dropbox.com/scl/fi/wevhopcf81vx6vdoarn5a/efields...</a><p>Email: in the resume<p>Blurb: PhD in operations research -> startup employee #2 -> scale startup, gradually moving from data science IC to VP of data science + software engineering -> now looking for meaningful hands-on technical work at a company inventing something in the world of atoms<p>Something cool I built that's not work related: <a href="https://nomai-writing.com/" rel="nofollow">https://nomai-writing.com/</a> in the spirit of Outer Wilds</p>
]]></description><pubDate>Tue, 02 Apr 2024 01:56:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=39901578</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=39901578</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39901578</guid></item><item><title><![CDATA[New comment by Tarrosion in "People hate the idea of car-free cities until they live in one"]]></title><description><![CDATA[
<p>I don't think I follow, can you elaborate?<p>* Car users are quite dependent on the government for transportation, e.g. the many billions (in the US) of public dollars spent on roads each year. Hard to get around without them!<p>* Even if we hand-wave that away and assume car users aren't dependent on the government for transportation, surely _everyone_ is dependent for other reasons like enjoying public goods (national defense, clean air and water, rule of law), access to the social safety net, etc.?</p>
]]></description><pubDate>Wed, 20 Mar 2024 13:23:34 +0000</pubDate><link>https://news.ycombinator.com/item?id=39766096</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=39766096</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39766096</guid></item><item><title><![CDATA[New comment by Tarrosion in "Nine US states are teaming up to accelerate the adoption of heat pumps"]]></title><description><![CDATA[
<p>I've heard this before -- that oversized cooling units (whether standalone AC or part of a heat pump) mean muggy interiors in the humid seasons. But...why? I'd think that a fixed amount of air compressed in the compressor means a fixed amount of condensation runoff from the unit, and it wouldn't matter much whether it's a big unit running occasionally or a small unit running frequently. Why is that wrong?</p>
]]></description><pubDate>Fri, 09 Feb 2024 19:05:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=39318920</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=39318920</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39318920</guid></item><item><title><![CDATA[New comment by Tarrosion in "Anki – Powerful, intelligent flash cards"]]></title><description><![CDATA[
<p>Anyone have suggestions for the lowest friction / best UX way to generate and study Anki cards? (my smartphone is Android, if that matters.)<p>I know spaced repetition is super helpful and I should be making and study cards to help with language learning and other topics I'm studying, but it always feels like a slog to try to find a deck (which won't end up being what you want) or manually make a bunch of cards, the UI is a little meh, etc.</p>
]]></description><pubDate>Sun, 28 Jan 2024 13:50:41 +0000</pubDate><link>https://news.ycombinator.com/item?id=39165713</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=39165713</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=39165713</guid></item><item><title><![CDATA[New comment by Tarrosion in "Julia 1.10"]]></title><description><![CDATA[
<p>What's the user-facing difference between Lux and Flux?</p>
]]></description><pubDate>Wed, 27 Dec 2023 22:18:25 +0000</pubDate><link>https://news.ycombinator.com/item?id=38787494</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=38787494</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38787494</guid></item><item><title><![CDATA[New comment by Tarrosion in "Electric scooter company Bird files for bankruptcy"]]></title><description><![CDATA[
<p>I agree that cars and trucks are appropriate for a variety of trips and cargo-hauling use cases that scooters are not appropriate for. But I confess I'm missing the implication - what does this imply about the claim that micromobility is held to a standard we don't typically hold other transportation modes to, in part because we have a default cars-first perspective?</p>
]]></description><pubDate>Thu, 21 Dec 2023 04:41:46 +0000</pubDate><link>https://news.ycombinator.com/item?id=38717081</link><dc:creator>Tarrosion</dc:creator><comments>https://news.ycombinator.com/item?id=38717081</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=38717081</guid></item></channel></rss>