B
BYTECOP
Learn the concept. Watch it break. Fix the real incident.

Three concept flows: a one-sentence mental model, an interactive walkthrough you manipulate yourself, then a real failure-mode problem graded by execution, not guesswork.

AI · RAG Chunk Boundary Context Loss Where you cut a document determines what survives. A 3-rung escalating incident: header separation, table splitting, and token budget overhead.
AI · RAG Retrieval Retrieval never fails loudly. It always returns something, ranked by least bad, so a hallucination looks exactly as confident as a grounded answer.
SWE Silent Error Swallowing A broad except clause doesn't handle errors. It hides them, including the ones you never expected, and reports success instead.