Founder @ https://teapawt.net/t.co/MS5IB7hdby Scaling the world's largest CI challenges for 42 months Built Atlas Vector Search @mongodb
San Francisco, CA
Joined February 2014
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Marcus Eagan retweeted
my guy @0xjustadev warned of this exact situation when EIP-7702 was discussed two years ago
Marcus Eagan retweeted
13 out of 5592 times google has been down this much. use godel (instead of the garbage you are using now) to find out:
GOOGL <F8> (EQUITY) HRH <ENTER>
Marcus Eagan retweeted
Vector databases are more than just an index! 👀
Booking(dot)com ran their own test with 100M embeddings, queries with filters and concurrent writes. 🔬
They concluded that purpose-built vector databases behave differently from “general-purpose search engines with vector capabilities added on.” 🚀
In Weaviate, the index and storage engine are built together. 🧬
HNSW is an in-memory graph persisted with an append-only log, while objects and filters live in a custom LSM store. Filters come out of the LSM store as bitmaps that steer the HNSW search (ACORN), and writes are cheap appends.
HFresh goes further: its vector clusters live directly in the LSM store, so the index rebalances itself in the background instead of needing full rebuilds. 💽
Other systems inherit storage built for something else. Page-based databases turn every update into new row versions, WAL and VACUUM work. Segment-based search engines build a separate graph per segment, so queries search every segment and merges rebuild graphs. 🏗️
The index matters. So does its integration with everything underneath it.
booking.ai/how-we-selected-t…
Marcus Eagan retweeted
The Ford Model T in 1920 had 15,000 nodes in its supplier dependency graph before you hit dirt.
A modern BMW X5 has an order of magnitude more, with chains 6, 7, 8, 10 layers deep.
Automation expanded the supply chain. As building got easier, the bar for excellence went up, and you used suppliers to simplify the domain you had to master.
Software is going to do the same thing. Many more smaller companies will deliver excellence in niches.
Maybe fewer enormous VC-sized opportunities, though...
Marcus Eagan retweeted
In normal internet operation, approximately 1-5% of data packets are lost or arrive corrupted during transmission.
You almost never notice this because the Transmission Control Protocol (TCP), designed in 1973 by Vint Cerf and Bob Kahn, detects missing packets and automatically requests retransmission before delivering data to the application.
TCP turns an inherently lossy physical network into a reliable logical channel.
Every web page load, file download, and video call relies on this invisible error-correction happening thousands of times per second.
Marcus Eagan retweeted
Bill Draper (1928-2026) was a great man. He Was a Tech Investor Before There Was a Silicon Valley nytimes.com/2026/09/30/techn… @NYTimes
Marcus Eagan retweeted
I used to write off “mindset” as woo-woo hippie shit. but the more time I've spent with successful people, the more I see the same habits:
meditation, journaling, affirmations
Tobi Lütke (the guy who built Shopify into a $180 billion company btw) said affirmations are the dumbest trick that works:
“if you tell yourself or write down a hundred times something about yourself, that writes it into the neural frontal cortex at such a deep level that your brain will start reconciling you to that…
… it's not like a placebo. it's actually like you just actively change your neural frontal cortex in this moment. so, I use this often”
I’ve said it before and I’ll say it one million times again: the words you speak matter
> write down your goals
> communicate them repeatedly
> speak things into existence
I’ve been saying @beehiiv will become a multibillion dollar company (as a fact) before we had $1k in revenue
Marcus Eagan retweeted
Teamwork makes the dream work.
Today we released v1.7.2!
github.com/TraceMachina/nati…
6 months since v1.0.0 we have hundreds of companies using NativeLink across a variety of industries and nearly 80 contributors. We also have grown enterprise users by >=700% YoY. 🤯
ty ty @sharpshoot for everything!
Marcus Eagan retweeted
What’s the differentiator when software becomes commoditized?
What are any of us doing?
We need to approach engineering with a new lens.
Our CTO @jamesacowling has some thoughts.
Marcus Eagan retweeted
The Convex AI Gateway is now live. Call any major model and answers stream to your users live. No wrapper to build. No token markup. No API key to manage. convex.dev/ai-gateway
Marcus Eagan retweeted
In honor of the SaaSpocalypse, Richard Stallman’s manifesto on free software is mandatory reading: gnu.org/philosophy/fsfs/rms-…
Viva open source.
Marcus Eagan retweeted
Today WorkOS is launching auth.md
An open protocol for agents to register for services on the web.
We're partnering with @Cloudflare and @Firecrawl as some of the first providers.
Why did we build this? And why now? 🧵
Marcus Eagan retweeted
yesterday we organized our first conference in @browserbase history.
having our entire team together on that stage was one of the most meaningful moments of our journey so far.
thank you to all who attended and I can't wait for NAVIGATE 2027
