<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: vu0tran</title><link>https://news.ycombinator.com/user?id=vu0tran</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Fri, 30 Oct 2026 06:25:51 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=vu0tran" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[Show HN: Vu – a new programming language designed for AI. Rust speeds, Py syntax]]></title><description><![CDATA[
<p>hi everyone! I wanted to share what I've been working on these past 6~ years.<p>TL;DR: Rust is great, but somewhere along the way, I learned that I was too dumb to read and write Rust. As I worked on larger and larger Rust projects, I also became frustrated with the developer experience of working in Rust (slow compile time), so I wanted a better way.<p>Vu's language changed a bit over time but the core principles remained the same:<p>1. It should be easy to read and write
2. It should be memory safe
3. It should be fast to run
4. It should be fast to compile<p>Here's how I approached each:<p>1. Vu is syntactically very close to Python. The ownership rules are the ones Rust has, but I personally find it a lot easier to parse and understand.  I've tested this with various LLMs and found it can read and write Vu out the box because of the similarity to Python.<p>2. Vu uses the same principles of Rust. Every value has one owner, borrows can't escape or outlive what they borrow, and nothing changes while it's borrowed.<p>3. Vu compiles down to C at the end of the day, so everything runs approximately at C speeds.<p>4. vuc check on the compiler’s own source (about 21,500 lines of Vu), takes about 0.4~ s. This check covers parsing, type and borrow checking. cargo check on a Rust project that size usually takes several seconds from scratch. Then there are other opinionated language decisions. Vu has no macros, Vu's borrow checker is lighter weight than Rust's with simpler interfaces and generics.<p>However, in the past few years, as Vu's language evolved and AI began to take over, I expanded Vu's principles to include a couple additional principles:<p>5. It should be secure
6. It should be efficient for LLMs to write<p>5. I want to pen test Vu in public. In <a href="https://github.com/vu0tran/vu/tree/main/tests" rel="nofollow">https://github.com/vu0tran/vu/tree/main/tests</a>, you'll see a battery of tests where I'm trying to basically pwn Vu. There are explicit language decisions in there as well that tries to prevent a host of security flaws that exist in other languages, e.g, integer overflow stops the program instead of quietly wrapping around.<p>6. The syntax of Vu is designed to be tokenizer efficient. In addition, when Vu checks throws errors, the errors are designed to be token efficient and written in a way that guides LLMs to more easily fix bugs, reducing turns overall.<p>So, in summary, Vu is still experimental. The compiler is 21,500 lines of Vu and compiles itself. The standard library also has TLS, HTTP/2, WebSockets and a PostgreSQL client, all tested against Python’s implementations and hostile input. I think most of the pieces are there. It does also compile down also to WebAssembly so you can play around w/ the checker on the website!<p>Feel free to try to break it!<p>What's next:
1. Figure out how to get Vu to perform faster than Rust
2. Rewrite some OSS libraries in Vu to further prove the language</p>
<hr>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=50276431">https://news.ycombinator.com/item?id=50276431</a></p>
<p>Points: 1</p>
<p># Comments: 1</p>
]]></description><pubDate>Wed, 28 Oct 2026 16:35:24 +0000</pubDate><link>https://vulang.org/</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=50276431</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=50276431</guid></item><item><title><![CDATA[New comment by vu0tran in "The Coming Age of Super Entertainment and Super Porn"]]></title><description><![CDATA[
<p>Thanks for giving it a read! Honestly, I hope you're right and I'm wrong. I think for the most part, the things that people talk about and try to predict don't usually come to fruition. It could be that I'm just completely off my rocker and absolutely wrong, in that case, great. Or, it could be that the things we talk about, people internalize which enables us to sidestep the bad reality. Who knows!<p>Predicting the future is hard and people are never 100% correct.</p>
]]></description><pubDate>Sat, 26 Jul 2025 21:49:06 +0000</pubDate><link>https://news.ycombinator.com/item?id=44697175</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=44697175</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44697175</guid></item><item><title><![CDATA[New comment by vu0tran in "The Coming Age of Super Entertainment and Super Porn"]]></title><description><![CDATA[
<p>Yeah you might be right. I typically am a lot more bull than my other colleagues lol. I don't think I'm far off though. I might be several years off, but definitely not 10s of years IMO</p>
]]></description><pubDate>Sat, 26 Jul 2025 21:38:18 +0000</pubDate><link>https://news.ycombinator.com/item?id=44697082</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=44697082</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44697082</guid></item><item><title><![CDATA[New comment by vu0tran in "The Coming Age of Super Entertainment and Super Porn"]]></title><description><![CDATA[
<p>Author here. Thanks for reading. I've been thinking about this for a long time. I used to work at Snapchat where a lot of the talking points were still centered around the "Social Dilemma".<p>As I've transitioned to working on AI, I think the average person doesn't understand how there's a gigantic underbelly that's just purely dedicated to pornographic use – whether that's in erotic roleplaying with LLMs, or generating pornographic images with diffusion models. It's massive, but largely not talked about and remains out of view.<p>From my experience, when you go from text to image, it's basically an order of magnitude change in the dopamine response.<p>When you go from image to video, it's essentially another order of magnitude.<p>What I'm trying to say is... I don't think we're ready for what's to come...</p>
]]></description><pubDate>Sat, 26 Jul 2025 21:33:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=44697055</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=44697055</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44697055</guid></item><item><title><![CDATA[The Coming Age of Super Entertainment and Super Porn]]></title><description><![CDATA[
<p>Article URL: <a href="https://vutran.substack.com/p/the-dopamine-machine-the-coming-age">https://vutran.substack.com/p/the-dopamine-machine-the-coming-age</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=44696922">https://news.ycombinator.com/item?id=44696922</a></p>
<p>Points: 14</p>
<p># Comments: 23</p>
]]></description><pubDate>Sat, 26 Jul 2025 21:07:35 +0000</pubDate><link>https://vutran.substack.com/p/the-dopamine-machine-the-coming-age</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=44696922</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44696922</guid></item><item><title><![CDATA[New comment by vu0tran in "Adam Neumann’s new company gets a big check from Andreessen Horowitz"]]></title><description><![CDATA[
<p>ehh... to be fair, lots of companies did much worse. Lots of companies in Fintech during the run up.</p>
]]></description><pubDate>Tue, 16 Aug 2022 15:25:29 +0000</pubDate><link>https://news.ycombinator.com/item?id=32484055</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32484055</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32484055</guid></item><item><title><![CDATA[New comment by vu0tran in "A graph of tech companies' Price to Sales[1] over the last 4 years by sector"]]></title><description><![CDATA[
<p>[1] Price to Sales is a company's reported last 12 months of revenue divided by their market cap at that point in time<p>[2] If anyone wants a weekly report, submit your email here: <a href="http://eepurl.com/h8Q-UD" rel="nofollow">http://eepurl.com/h8Q-UD</a><p>From July 30th 2018 to July 30th 2022, price to sales ratio has changed accordingly:<p>Ecommerce: -21.4%<p>Travel: -23.8%<p>SaaS: -27.0%<p>EdTech: -69.6%<p>FinTech: -26.3%<p>Healthcare: +14.9%<p>Supplychain: -27.9%</p>
]]></description><pubDate>Mon, 15 Aug 2022 18:11:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=32473230</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32473230</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32473230</guid></item><item><title><![CDATA[A graph of tech companies' Price to Sales[1] over the last 4 years by sector]]></title><description><![CDATA[
<p>Article URL: <a href="https://i.imgur.com/zKAQiOC.png">https://i.imgur.com/zKAQiOC.png</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=32473229">https://news.ycombinator.com/item?id=32473229</a></p>
<p>Points: 2</p>
<p># Comments: 1</p>
]]></description><pubDate>Mon, 15 Aug 2022 18:11:11 +0000</pubDate><link>https://i.imgur.com/zKAQiOC.png</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32473229</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32473229</guid></item><item><title><![CDATA[Show HN: A calculator for startup valuations based on A16Z]]></title><description><![CDATA[
<p>Article URL: <a href="https://valuations.fyi/blog/value-startup-like-an-investor">https://valuations.fyi/blog/value-startup-like-an-investor</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=32418029">https://news.ycombinator.com/item?id=32418029</a></p>
<p>Points: 3</p>
<p># Comments: 1</p>
]]></description><pubDate>Wed, 10 Aug 2022 20:34:22 +0000</pubDate><link>https://valuations.fyi/blog/value-startup-like-an-investor</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32418029</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32418029</guid></item><item><title><![CDATA[The #1 way new CS grads get completely f'd by startups]]></title><description><![CDATA[
<p>Article URL: <a href="https://valuations.fyi/blog/screwed-by-startups">https://valuations.fyi/blog/screwed-by-startups</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=32404024">https://news.ycombinator.com/item?id=32404024</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Tue, 09 Aug 2022 20:43:13 +0000</pubDate><link>https://valuations.fyi/blog/screwed-by-startups</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32404024</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32404024</guid></item><item><title><![CDATA[New comment by vu0tran in "The Science of Startup Valuation"]]></title><description><![CDATA[
<p>It's like 95% art, which is why we got horrendous valuations like with Bolt. <a href="https://valuations.fyi/company/bolt-financial" rel="nofollow">https://valuations.fyi/company/bolt-financial</a><p>$40M revenue, $11B valuation. What were they thinking!?</p>
]]></description><pubDate>Thu, 04 Aug 2022 18:23:11 +0000</pubDate><link>https://news.ycombinator.com/item?id=32346481</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32346481</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32346481</guid></item><item><title><![CDATA[What's happening with startup valuations? Looking at last 4 years of public data]]></title><description><![CDATA[
<p>Article URL: <a href="https://valuationsfyi.substack.com/p/what-the-heck-is-happening-with-startup">https://valuationsfyi.substack.com/p/what-the-heck-is-happening-with-startup</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=32309751">https://news.ycombinator.com/item?id=32309751</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Mon, 01 Aug 2022 17:57:27 +0000</pubDate><link>https://valuationsfyi.substack.com/p/what-the-heck-is-happening-with-startup</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32309751</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32309751</guid></item><item><title><![CDATA[Show HN: Equities.fyi – Startup valuations based on public company data]]></title><description><![CDATA[
<p>With the current down markets, we were wondering what private company valuations looked like when compared to similar public companies. We were inspired by the a16z article (<a href="https://future.com/framework-valuation-navigating-down-markets/" rel="nofollow">https://future.com/framework-valuation-navigating-down-marke...</a>) for calculating valuations and figured out the sales-to-valuation ratio of public companies at the time of the last fundraising round and applied the change in the public market to get the current startup valuation.<p>If things don’t look right, our defaults might be off - please feel free to change those if they’re too different from what you’d expect.</p>
<hr>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=32267558">https://news.ycombinator.com/item?id=32267558</a></p>
<p>Points: 18</p>
<p># Comments: 1</p>
]]></description><pubDate>Thu, 28 Jul 2022 17:27:45 +0000</pubDate><link>https://equities.fyi/company/stripe</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32267558</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32267558</guid></item><item><title><![CDATA[New comment by vu0tran in "Instacart announces executive leadership changes amid valuation drop"]]></title><description><![CDATA[
<p><a href="https://equities.fyi/company/instacart" rel="nofollow">https://equities.fyi/company/instacart</a><p>Uber / Lyft get a multiple of about 1x. DoorDash gets 4x. Instacart did $1.8B in revenue so even at a generous 6x multiple, it's only $11B...</p>
]]></description><pubDate>Tue, 12 Jul 2022 22:02:52 +0000</pubDate><link>https://news.ycombinator.com/item?id=32076264</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32076264</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32076264</guid></item><item><title><![CDATA[New comment by vu0tran in "Klarna’s valuation crashes to under $7bn in tough funding round"]]></title><description><![CDATA[
<p>Buy now pay never. All of fintech is probably down by roughly 80% from highs: <a href="https://equities.fyi/company/plaid" rel="nofollow">https://equities.fyi/company/plaid</a></p>
]]></description><pubDate>Mon, 11 Jul 2022 20:44:22 +0000</pubDate><link>https://news.ycombinator.com/item?id=32061561</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=32061561</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=32061561</guid></item><item><title><![CDATA[New comment by vu0tran in "Show HN: Just Another Journaling App"]]></title><description><![CDATA[
<p>You can see the feature roadmap and design ideas here: <a href="https://justjournal.app/about" rel="nofollow">https://justjournal.app/about</a><p>(FYI, your data is only saved on localstorage for now)<p>I basically just wanted an excuse to create something fun this weekend. I struggled to find a very simple to use app where I could just start writing for the sake of writing. Some other problems I have:<p>1. Full text indexing isn't great on many of these writing apps (not like I have that right now though lol)
2. Using google docs at night melts my eyes 
3. Other writing apps focus too much on publishing, which detracts from writing
4. I want more tools to eventually help me write (no idea what this means)</p>
]]></description><pubDate>Sun, 27 Mar 2022 15:29:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=30820982</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=30820982</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=30820982</guid></item><item><title><![CDATA[Show HN: Just Another Journaling App]]></title><description><![CDATA[
<p>Article URL: <a href="https://justjournal.app/">https://justjournal.app/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=30820940">https://news.ycombinator.com/item?id=30820940</a></p>
<p>Points: 14</p>
<p># Comments: 2</p>
]]></description><pubDate>Sun, 27 Mar 2022 15:24:20 +0000</pubDate><link>https://justjournal.app/</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=30820940</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=30820940</guid></item><item><title><![CDATA[Are women more racially selective than men?]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@vu0tran/are-women-more-racists-than-men-63d551aa2336#.z5fdr6yqq">https://medium.com/@vu0tran/are-women-more-racists-than-men-63d551aa2336#.z5fdr6yqq</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=12400269">https://news.ycombinator.com/item?id=12400269</a></p>
<p>Points: 7</p>
<p># Comments: 0</p>
]]></description><pubDate>Wed, 31 Aug 2016 18:12:03 +0000</pubDate><link>https://medium.com/@vu0tran/are-women-more-racists-than-men-63d551aa2336#.z5fdr6yqq</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=12400269</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=12400269</guid></item><item><title><![CDATA[HackerSurfing II: Free Trip to Italy for Job-Seeking Engineers and Designers]]></title><description><![CDATA[
<p>Article URL: <a href="https://hackersurfing.com/italy">https://hackersurfing.com/italy</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=12399762">https://news.ycombinator.com/item?id=12399762</a></p>
<p>Points: 11</p>
<p># Comments: 2</p>
]]></description><pubDate>Wed, 31 Aug 2016 17:00:55 +0000</pubDate><link>https://hackersurfing.com/italy</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=12399762</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=12399762</guid></item><item><title><![CDATA[What we used to build our dating app]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@vu0tran/how-to-build-and-launch-a-dating-app-in-a-week-759e6d32b764">https://medium.com/@vu0tran/how-to-build-and-launch-a-dating-app-in-a-week-759e6d32b764</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=11848486">https://news.ycombinator.com/item?id=11848486</a></p>
<p>Points: 4</p>
<p># Comments: 0</p>
]]></description><pubDate>Mon, 06 Jun 2016 17:26:06 +0000</pubDate><link>https://medium.com/@vu0tran/how-to-build-and-launch-a-dating-app-in-a-week-759e6d32b764</link><dc:creator>vu0tran</dc:creator><comments>https://news.ycombinator.com/item?id=11848486</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=11848486</guid></item></channel></rss>