A free watchlist for 19 big math, CS and engineering questions. Follow source-linked papers, posts and comments, with rumors clearly labeled and updates ordered by their original dates. Searches run four times daily. Suggest problems, vote on what interests you, or opt into a daily email digest.
Choose a ready-made difficult conversation or create and share your own fictional scenario. Practice it out loud with an AI character that responds to what you say, pushes back, and can move toward a practical next step. After the call, review four observable conversation skills. Free sessions are available while the community-funded pool has capacity.
Check SurveyJS, REDCap, and FHIR Questionnaires for unreachable questions and broken references. FormPath runs in your browser and returns a working answer, a proof where supported, or an explicit limit. Supported SurveyJS forms also get hidden-answer checks.
