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The AI Signal

9 November 2026

Simon WillisonArticle

AI is destroying my CS degree

This framing cuts to a real tension: if models handle coding, optimization, debugging, and systems design, what's left to teach? Willison is respected, this will resonate with builders and educators alike. The substance depends on whether it's diagnosis or prescription, but either way it's pointing at a structural shift in what skills matter. Worth reading to figure out what parts of your team's hiring and onboarding you should rethink.

arXiv cs.AIPaper

I Think, Therefore I Attack: Evaluating Thought Injection Attacks on Reasoning Agents

Reasoning models are the frontier for agentic systems, and thought injection is a novel attack surface that nobody's defending yet. Success rates up to 50% on operational objectives means this isn't theoretical. For anyone shipping agents with reasoning models, this is a critical threat to model before deployment. Expect guard layers to emerge fast.

arXiv cs.AIPaper

Discovering formally verified quantum programs with AI

This is the first credible demo of AI agents doing genuine scientific research at the frontier, not just optimizing known problems. The key is the formal verification loop: agents propose, Lean proves, the wiki accumulates knowledge, and better agents build on it. For builders exploring multi-agent systems and automated research, this shows what the architecture should look like. For investors, it's proof that AI can accelerate domains where correctness is verifiable.

arXiv cs.AIPaper

CPU-ARC: Agentic Reasoning Caching for on-CPU Reasoning Reuse

This is the economics of agentic systems shifting in real time. Once an LLM has reasoned through a problem class, you can bake the reasoning into cheap, deterministic CPU code. For builders: audit your agent pipelines for repeated reasoning patterns and cache them. For investors: this is why LLM inference cost curves are going to hit a wall, and why hybrid systems win.

arXiv cs.AIPaper

Test-Time Compute Scales Better with Parallel Agent Teams

This is a clean architectural win for multi-agent inference. Small teams in parallel get the diversity of many agents without the coordination overhead of one large team. On formal proofs and exploit development, it beats GPT-class models at a fraction of the cost. The economics matter: if you're running verification workloads or theorem proving, parallel teams should be your baseline. The method generalizes beyond those domains.

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