https://www.obsidiandelta.com/blog/ Writing from Obsidian Delta on cognition, cognitive companions, and where the work stands. https://www.obsidiandelta.com/blog/a-tutoring-practice-with-a-kit-for-every-hard-topic/ https://www.obsidiandelta.com/blog/a-tutoring-practice-with-a-kit-for-every-hard-topic/ Sun, 18 Oct 2026 00:00:00 GMT What a tutor sells when the preparing is already done, and how one kit becomes many Editions. https://www.obsidiandelta.com/blog/french-editions-a-business-in-a-gap/ https://www.obsidiandelta.com/blog/french-editions-a-business-in-a-gap/ Sun, 18 Oct 2026 00:00:00 GMT The shortage of French-language teaching material in Canada, and a way to meet it one product at a time. https://www.obsidiandelta.com/blog/run-an-initiative-on-the-desk/ https://www.obsidiandelta.com/blog/run-an-initiative-on-the-desk/ Sun, 18 Oct 2026 00:00:00 GMT The customer-management and content system Obsidian Delta runs its own work on, and how a team, a school or a community can run theirs on it. https://www.obsidiandelta.com/blog/the-first-week-on-the-job-from-one-page/ https://www.obsidiandelta.com/blog/the-first-week-on-the-job-from-one-page/ Sun, 18 Oct 2026 00:00:00 GMT A new hire's first week built from a one-page brief, for a bakery, a cab company, or a clinic. https://www.obsidiandelta.com/blog/what-is-already-solved/ https://www.obsidiandelta.com/blog/what-is-already-solved/ Sun, 18 Oct 2026 00:00:00 GMT The free stack, piece by piece, and the businesses it leaves open to the person who brings the expertise. https://www.obsidiandelta.com/blog/cognitive-companion/ https://www.obsidiandelta.com/blog/cognitive-companion/ Mon, 21 Sep 2026 00:00:00 GMT AI is becoming a substrate, like electricity, and most of what is sold on top of it is appliances. A cognitive companion is a new category: not an appliance, not an assistant, not an agent — the part of you that is wired in.