Write a timed two-column explainer video script

Write a complete, timed voiceover script for an explainer video.

Topic or product: [WHAT IT IS AND WHAT IT DOES]
Audience and what they already know: [DESCRIBE]
Target runtime: [e.g. 60 / 90 / 120 SECONDS]
Call to action: [THE ONE THING THE VIEWER SHOULD DO AT THE END]
Key points that must appear: [LIST, IN PRIORITY ORDER]
Tone: [e.g. PLAINSPOKEN AND CONFIDENT, NO SALES VOICE]

Before writing, set the budget: at 150 words per minute, state the total word budget, then allocate it across this arc — hook, problem, how it works, why this over alternatives, call to action. Show the allocation as a one-line table.

Format the script as a two-column AV table. Left column VISUAL: what is on screen, described concretely enough that a videographer or motion designer could act on it. Right column AUDIO: the voiceover line, plus reading direction in lowercase brackets where delivery matters, e.g. [slower, let it sit]. Add a cumulative timestamp for each row, derived from the word counts.

Rules for the audio column: one idea per row; every sentence sayable in one breath; the hook opens on the viewer's problem or a concrete image, never the product name; the product enters only after the problem is felt; the call to action is one specific act, not a menu. Wherever a claim wants a number, customer name, or result, write [PROOF POINT — SUPPLY] rather than inventing one.

After the table, return: total word count and computed runtime; the single row to cut first if I need it shorter; and two alternate hooks with a one-line rationale each.