A single creator stands in front of a green screen or plain wall and explains a complex topic — usually a tech company, financial concept, or category — by drawing diagrams live with markers on dotted paper, filmed in one continuous take. The visible hand-drawn craft is the point: it’s a legible signal that a human made this, in deliberate contrast to AI-generated slide decks and voiceover. Structure: (1) Open with a punchy question or claim about the subject; (2) Introduce the company/concept with a rough drawn logo or icon; (3) Draw the core mechanic — how the thing actually works — in 2–4 labeled panels; (4) Draw the market context (competitors, ecosystem) in a comparison sketch; (5) Land on a takeaway or provocative implication. Length norm: 60–120 seconds for Reels/TikTok, up to 3 minutes for Instagram. Filmed vertical. No cuts, or minimal cuts. Marker sounds and paper texture are audible — do not scrub these. Font-hand-lettering is part of the aesthetic.