Import AI 457: AI stuxnet; cursed Muon optimizer; and positive alignment
The newsletter Import AI discusses a computer virus called fast16.sys that selectively targets high-precision calculation software, potentially undermining scientific research. It also highlights issues with the Muon optimizer, which can cause neuron death in machine learning models. Researchers have developed a new optimizer, Aurora, to address these problems.
- ▪Fast16.sys is a computer virus that tamper with results in high-precision calculation software.
- ▪The Muon optimizer has been found to cause significant neuron death in machine learning models.
- ▪Researchers have created a new optimizer called Aurora to mitigate the issues caused by Muon.
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Record
| Original publisher | Import AI (Jack Clark) |
| Canonical URL | https://importai.substack.com/p/import-ai-457-ai-stuxnet-cursed-muon |
| Publication time | Mon, 18 May 2026 13:31:17 GMT |
| Retrieval time | 2026-05-18T13:34:56.501Z |
| Last seen | 2026-05-18T13:34:56.501Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | kyutdoPtVTXk |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Import AI 457: AI stuxnet; cursed Muon optimizer; and positive alignment Jack ClarkMay 18, 2026ShareWelcome to Import AI, a newsletter about AI research. Import AI runs on arXiv, cappuccinos, and feedback from readers. If you’d like to support this, please subscribe.SubscribeStuxnet before Stuxnet:…Fast16 bugs software likely used in weapons programs…Here’s a fascinating investigation of a ~20+ year old computer virus called fast16.sys. This software is interesting because it “selectively targets high-precision calculation software, patching code in memory to tamper with results.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Import AI (Jack Clark).
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