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Lessons from 2 years of building virtual humans

https://enterprise.righthand.ai/blog/three-mistakes-from-building
3•notanaiagent•2h ago

Comments

notanaiagent•2h ago
We spent a year building guardrails around AI. Then we spent the next year tearing them down.

After 2 years building virtual humans, here are our 3 biggest mistakes:

1. We underestimated how fast intelligence scales. We spent months building scaffolding so our agents couldn’t break things. A full week just to stop one from deleting a user’s inbox.

Then intelligence started doubling every ~6 months. The guardrails became the bottleneck. Now we spend more time removing constraints than adding them.

2. We treated memory like an engineering problem. Vector databases solved recall. But human memory isn’t just input → output.

It’s semantic search and graph traversal. Backwards and forwards. We tried every chunking strategy and embedding model.

Nothing worked until we rebuilt memory to mirror how humans actually think.

3. We tried to encode intent into workflows. Zapier-style automation looks clean and reliable.

Until it isn’t. A “simple” daily brief became 6+ nodes. One failure downstream and I got a confident company summary… about a Montana farm.

Workflows don’t understand why they’re doing something. So they can’t catch their own mistakes.

The lesson: Treat the model as the system — not a component inside it.

Still unlearning this.

jam0xb797fd•1h ago
This is pretty interesting and reminds me of the classic “Bitter Lesson” essay by Sutton: early efforts to micromanage LLM behavior parallel early chess programmers painstakingly encoding human heuristics, only to lose out to brute computational scaling/cheaper intelligence (rekt).

Your transition from rigidly engineered workflows to systems embracing raw intelligence feels a lot like the shift from handcrafted speech models to deep neural nets.

wonder how much more human intuition you have to scrape out before you are futureproofed

That said, there’s still a subtle tension here—human workflows encode intention in a way chess doesn’t, so purely scaling compute might underestimate how much structured intent matters. Perhaps the final answer isn’t “more computation” alone, but rather more computation guided by a minimal yet essential scaffolding of human intent.

Can Apple read your iMessages? (2013)

https://blog.cryptographyengineering.com/2013/06/26/can-apple-read-your-imessages/
1•chistev•1m ago•0 comments

Intel could blow up the Console Wars (if it had the guts)

1•noumenon1111•2m ago•0 comments

Poll: Do you use RSS in 2026?

1•Darkstryder•2m ago•0 comments

'Molecular microscope' reveals greener path to ammonia

https://phys.org/news/2025-12-molecular-microscope-reveals-greener-path.html
1•PaulHoule•3m ago•0 comments

Organizing My Stuff

https://bezoar.org/posts/2020/0203/organizing-my-stuff/
1•thunderbong•4m ago•0 comments

Show HN: Print Your Anki Decks to Paper

https://evan.widloski.com/ankiprint/
1•Evidlo•4m ago•0 comments

AI layoffs are looking more and more like corporate fiction that's masking dark

https://fortune.com/2026/01/07/ai-layoffs-convenient-corporate-fiction-true-false-oxford-economic...
1•xbmcuser•4m ago•0 comments

OCR Isn't Good Enough: From Medical Faxes to Structured Data

https://robert-mcdermott.medium.com/ocr-isnt-good-enough-from-faxes-to-structured-data-1302d60344c6
1•mcdermott•8m ago•0 comments

Podcast interview with one of the maintainers of StyleX

https://engineering.fb.com/2026/01/12/web/css-at-scale-with-stylex/
1•mostdefinite1•9m ago•0 comments

RFK Jr.'s new food pyramid could be a disaster for the environment

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1•ebbi•10m ago•0 comments

30 Years

https://www.charlespetzold.com/blog/2026/01/30-Years.html
1•strmcrw•10m ago•0 comments

Ask HN: Does anyone else think that humanoid robots is a bubble?

2•NewUser76312•11m ago•1 comments

Whistleblower leaks personal details of thousands of Border Patrol/ICE Agents

https://www.rawstory.com/ice-agents-data-leak/
5•ck2•14m ago•1 comments

Unraveling Principal Component Analysis

https://peterbloem.nl/publications/unraveling-pca
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Show HN: A simple resume generator written in Rust

https://github.com/naamanu/rcv
1•claeusdev•17m ago•0 comments

U.S. has been testing device linked to Havana Syndrome, sources say (12M video)

https://sashaingber.substack.com/p/exclusive-us-has-been-testing-a-captured
1•rmason•18m ago•0 comments

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3•gmays•19m ago•2 comments

Super easy security scanner for founders and developers to check their websites

https://www.securemysite.io/
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EPA No Longer Considering Lives Saved in Pollution Rules, Only Cost to Business

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4•testing22321•22m ago•1 comments

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https://v0-miniatureself.vercel.app/
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The Synthetic Self

https://aeon.co/essays/why-the-best-way-to-understand-the-self-is-to-build-a-robot-one
1•pr337h4m•22m ago•0 comments

Docs.google.com in your CSP can enable AI-based data exfiltration

https://simonwillison.net/2026/Jan/12/superhuman-ai-exfiltrates-emails/
2•hackerBanana•23m ago•1 comments

Incremental Reading

https://en.wikipedia.org/wiki/Incremental_reading
1•FigurativeVoid•24m ago•0 comments

Show HN: Ask your repos what shipped in plain English

1•inferno22•24m ago•0 comments

Eurail B.V. has experienced a security breach

https://www.eurail.com/en/ni/data-security-incident
3•throw_await•26m ago•0 comments

Free eBook: whistleblowing back end dev gets framed, fired, gaslit, assaulted

https://www.amazon.com/dp/B0GC94SZXK
1•smafarin•26m ago•0 comments

Operational Excellence, the Tech Lead Lever

https://newsletter.terminalprompt.com/p/operational-excellence-the-tech-lead
2•joaoqalves•29m ago•0 comments

Zohran's high-risk, high-reward strategy

https://www.natesilver.net/p/zohrans-high-risk-high-reward-strategy
1•7777777phil•29m ago•0 comments