Markdown Is the Operating System. Everything Else Is a Render. (opens in new tab)

TL;DR Markdown vs HTML cuts token usage 68–87%; Markdown vs DOCX XML is ~3x more token-efficient; RAG accuracy improves 35% when ingesting Markdown over raw HTML — the format is doing real work, not just aesthetics. 42% of companies have abandoned most AI initiatives not because the technology failed but because knowledge was stored in formats agents can't efficiently read, write, diff, or query. Three authoring formats only: Markdown for prose, YAML for configuration, CSV for tabular data — ...