Cognitive Exhaust Fumes, or: Read-Only AI Is Underrated — Šimon Podhajský, Head of AI, Waypoint
Apr 8, 2026 · 11:31
Šimon Podhajský argues that read-only AI systems that analyze personal digital exhaust without the ability to write back are more valuable than agentic AI that acts on users' behalf. He built a system ingesting six read-only sources (email, journal, tasks, CRM, browser sessions, notes) that surfaces insights like intention-action gaps, attention drift, and relationship decay via cross-source pattern detection—things no single source reveals. For example, a weekly reflection skill in Claude synthesizes a brutal review of his week, and a cross-source query maps his recent reading to contacts in his CRM using Vivaldi SQLite and Clay MCP. He emphasizes risk asymmetry: read-only errors cost nothing, while write errors can be unbounded. He also acknowledges security risks like the mosaic effect and Simon Willison's lethal trifecta, noting that shell access still allows exfiltration, but argues that examined risk is better than ignorance.
