Ai

First, the thing this is all in service of. The AI alignment problem is the challenge of making a powerful AI system reliably pursue what we actually want it to pursue - getting its goals, values, and behaviour to line up with human intentions, and to stay lined up even as the system becomes more capable than the people supervising it. It sounds simple and is not: we struggle to state our own values precisely, those values conflict between people, and an AI optimising hard for a slightly-wrong objective can produce outcomes nobody asked for. The multi-agent version - aligning one system with all of humanity at once, rather than a single person - is harder still, and it is the specific version Personal Universes is trying to dodge. ...

The “is the software engineer dead” genre has been running long enough that you can predict most of the takes before you read them. The interesting interviews are the ones where the person being interviewed is in a position to know something the rest of us do not. Boris Cherny, the creator of Claude Code at Anthropic, is one of those people. Sky News got him in front of three charts and asked him to react. ...

For most of the last few years, the “AI and cybersecurity” conversation has been a vibes argument. One side said the models would soon write novel exploits at scale. The other side said the models were still tripping over basic shell commands and could not be trusted to hack anything more dangerous than a CTF box. The honest answer was that nobody had hard numbers, so the debate stayed stuck on intuition. ...

TL;DR - The last month gave producers three things worth paying attention to. Superbooth 2026 in Berlin put neural audio processing into a hardware pedal for the first time and handed Buchla a $999 entry point. The AI music legal picture kept moving, with a fresh lawsuit against Suno and a still-pending Sony ruling expected this summer. And the tooling caught up quietly, with Ableton Live 12.4 and REAPER 7.73 shipping solid point releases. Here is what actually changed - and what is just noise. ...

TL;DR Prompt engineering optimised the wording of a single human-written request. Context engineering optimises the entire set of tokens in the model’s window across a whole run - system prompt, tool definitions, retrieved documents, tool results, conversation history, and memory The shift happened because of agents. The window is no longer one prompt you wrote - it is an accumulation that grows on every step, and most of it is produced by the system, not by you More context is not better context. Research on “context rot” and the older lost-in-the-middle effect show model accuracy degrades as the window fills, even well below the advertised limit The four levers are retrieval (what you pull in), memory (what persists across runs), tool results (what tools dump back), and compaction (what you summarise and discard) Treat the window as a budget. Measure its token composition, design tools to return terse output, curate rather than accumulate, and keep the static prefix stable so prompt caching still works For a few years, “prompt engineering” was the named skill of working with language models. It meant finding the wording, the framing, the few-shot examples, and the role instructions that coaxed the best answer out of a single request. It produced a small industry of prompt libraries, prompt marketplaces, and job titles. And in 2026 it is mostly gone, absorbed into something larger and harder. ...

TL;DR Start with What Actually Belongs in My AI Dev Stack in 2026 - the canonical stack essay Then An AI Tooling Learning Path - phased skill-building order Deep dives below cover comparisons and spec-driven workflows; single-tool posts are briefs, not entry points Canonical essays What Actually Belongs in My AI Dev Stack in 2026 An AI Tooling Learning Path: Logical Phases for 2026 Context Engineering - the production skill behind reliable coding agents Spec-Driven Development - when the brief becomes the product Deep dives Claude Code vs Cursor: A 6-Month Comparison GitHub Spec Kit and Spec-Driven Development GitHub Spec Kit in 2026: SDD Goes Mainstream My AI-Augmented Design Workflow When to Fine-Tune vs When to RAG Briefs (moment-in-time) These are useful snapshots, not the starting point: ...

TL;DR Cost is a design constraint, not an afterthought - model tier, context size, and deployment location are economic decisions Read the essays below in any order; start with Token Economics if you only have time for one Pairs with open-weight models and local inference guides Core essays Token Economics: Why the Cost of AI Isn’t Going Down GPU Servers vs AI API Credits: The Real Cost Breakdown Local AI vs Cloud AI: The Tradeoff Landscape in 2026 The AI Energy Crisis: Why Data Center Power Will Define the Next Decade Cerebras, Groq, SambaNova: The Inference Hardware Insurgents Adjacent The State of Open-Weight Models in 2026 - when open weights beat closed APIs on price Prompt Caching - the quiet latency and cost win The Token Efficiency Mindset - curating spend per conversation Is the $20 AI Subscription Era Over? We Are Learning to Buy Intelligence Related Reading AI Dev Tooling: A Reading Path for 2026 - canonical path for coding agents and stack decisions that depend on these cost constraints Home Agent Stack: From Mac Studio to Secured MCP Tools - building the hardware and software layer these economics govern Reasoning Models in 2026: What Changed and What Didn’t - why reasoning models carry a different cost profile than base models The Free Intelligence Era - the macro argument for where intelligence costs are headed

TL;DR Composer 2.5 is Cursor’s most capable in-house coding model yet, built on Moonshot’s open-source Kimi K2.5 checkpoint with about 85% of total training compute spent on Cursor’s own continued pretraining and RL The model is purpose-built for the agent loop inside Cursor - long-horizon tasks, hundreds of tool calls, multi-step instructions - rather than as a general-purpose chat model Cursor claims parity with Claude Opus 4.7 and GPT-5.5 on its own CursorBench v3.1 (63.2%) and a strong 79.8% on SWE-Bench Multilingual Pricing is dramatically lower: $0.50 / $2.50 per million input/output tokens on the default variant, with included usage doubled for the first week Together with SpaceXAI, Cursor is now training a much larger successor model from scratch on Colossus 2 with around 10x the compute - so 2.5 is a waypoint, not the endgame For a while, Cursor was an IDE wrapped around someone else’s models - Claude, GPT, Gemini. That story has shifted. With Composer 2.5, released this week, Cursor has shipped its most capable first-party coding model yet, and it is a serious enough piece of work that it deserves real consideration as a daily driver rather than a budget fallback. ...

A common dismissal of modern AI goes like this: “It is just a fancy autocomplete. It memorises text and stitches it back together. There is no real understanding, only retrieval.” It is a comforting story, and it has the shape of a critique that ought to be true. But spend enough time with frontier systems and a different picture starts to form. The thing that large models actually seem to be good at is not memorisation. It is something stranger and arguably more important: the formation of analogies, the combination of distant concepts, and the generation of conceptual relationships that were not explicitly present in any one place in the training data. ...

TL;DR This path walks through the full stack I run on a Mac Studio: local models → MCP tools → memory → remote access → security Almost no other blogs document the build and the hardening layer together Finish with Securing AI Agents before giving the agent real filesystem or mail access Part of the broader Trust series Read in order Which Mac Studio Should You Buy for Running LLMs Locally? - hardware and model sizing Giving Your Home AI Agent Real Tools: MCP Servers on a Mac Studio - wiring the tool layer Giving Your Home AI Agent Memory That Lasts - persistence across sessions How to Phone Your Home AI Agent - remote access when you are away Securing AI Agents - least privilege, confirmation gates, audit logs Adjacent guides Running AI Models Locally with Ollama - lighter-weight local inference option Agent Protocols in 2026: MCP, A2A, and ACP - the protocol layer Local AI vs Cloud AI - when to host vs call APIs DGX Spark vs Mac Studio - if you are sizing a dedicated inference box Related Reading AI Economics and Hardware: A Reading Path - token costs, GPU sizing, and energy constraints behind every hardware decision AI Dev Tooling: A Reading Path for 2026 - the coding and development layer that sits above the agent infrastructure Open WebUI: A Self-Hosted LLM Interface - web interface layer to pair with local inference Agent Protocols in 2026: MCP, A2A, and ACP - the protocol layer connecting agents to tools