What the renderer does to a script — two examples for Peps and Matt

Prepared 14 October 2026 for James Moore. Both tables set the script we sent, line by line, beside the generator's own spoken script from its first render. Every sentence in the left column was in the brief; the quoted ones were marked "spoken word for word". No audio edit had been applied to the right column.

The pattern. Full sentences become fragments without verbs ("Now an ant." for "Now consider an ant, a whole organism built from millions of cells."; "Two ways to get food." for "Every living thing gets food in one of two ways…"). Coinings change form ("Something that has to take in food from its surroundings" becomes "Something that takes in food from its surroundings"). The "so … because …" reasoning is cut to a dash ("The tree makes its own food — the tree is an autotroph." for "So the tree is an autotroph, because it makes its own food."). Rhetorical questions are added that the script never asked ("And a mushroom?"). The rule sentence and the closing line survive; the teaching sentences around them do not.

The numbers behind it. Across the first 20 MS Life Science renders, 85 protected lines: lines printed on the closing screen held word for word 73 percent of the time; unprinted lines 29 percent. Putting each sentence alone in its own step changed nothing (the second example was re-rendered that way: 1 of 10 held, same as before). An audio edit by id restores the lines every time, at 20 to 40 minutes per video.

Example 1 — Topic 1, lesson 9: "One cell or many" (162 spoken words sent; 19 sentences spoken)

# The script we sent (one sentence per line) What the renderer spoke
1 Here is a drop of pond water under a microscope. Through a microscope, meet a paramecium.
2 A tiny creature glides past: a paramecium. Here's the question: is this living thing made of one cell, or many?
3 The paramecium is one cell, and that one cell is a whole organism. Look closely: this whole living thing is one cell.
4 The paramecium's one cell moves, feeds, grows, responds, and reproduces. That one cell does everything itself — it moves, responds to its surroundings, feeds, carries out respiration, and grows.
5 One cell that carries out all seven life processes by itself is called a single-celled organism. One cell that carries out all seven life processes by itself is called a single-celled organism.
6 So the paramecium is single-celled. Now an ant.
7 Now consider an ant, a whole organism built from millions of cells. Zoom into one leg — a patch of many tiny cells.
8 The ant's millions of cells work together: some make up its gut, others its legs. Different cells have different jobs: gut cells digest its food, leg cells power its walking.
9 A living thing built from many cells working together is called a many-celled organism. Built from many cells working together — the ant is many-celled.
10 So the ant is many-celled. Two more, quickly.
11 Yeast is one cell, so yeast is single-celled. Yeast — each one is its own separate cell.
12 A mushroom is many cells working together, so a mushroom is many-celled. Yeast is one cell, so yeast is single-celled.
13 So, here's what we've seen: a single-celled organism is one cell that carries out all seven life processes by itself. And a mushroom?
14 And a many-celled organism is built from many cells working together. Look inside: many cells.
15 Okay, now your turn. A mushroom is built from many cells, so it's many-celled.
16 So here's the whole idea.
17 A single-celled organism is one cell doing all seven life processes by itself.
18 A many-celled organism is built from many cells working together.
19 Okay, now your turn.

Example 2 — Topic 3, lesson 2: "Two ways to get food" (James's own script, 143 words; 19 sentences spoken)

# The script we sent (one sentence per line) What the renderer spoke
1 Every living thing gets food in one of two ways: it takes food in from its surroundings, or it makes its own food. A cow, a mushroom, and an oak tree.
2 For example, this cow eats the grass, so it takes in food from its surroundings. All three need food.
3 This mushroom takes in food from the log, so it takes in food from its surroundings. Some living things take in food.
4 But this tree makes its own food, inside its leaves, using sunlight. Others make their own food.
5 Now, there's a scientific term for things that make their own food, and things that don't. Grass goes into the cow's mouth — the cow takes in food from its surroundings.
6 Something that makes its own food is called an autotroph. The mushroom is trickier.
7 Something that has to take in food from its surroundings is called a heterotroph. Fine threads grow from its base into the rotting log — the mushroom takes in food, too.
8 So the tree is an autotroph, because it makes its own food. The tree is different.
9 But the cow is a heterotroph, because it takes in food from its surroundings. Sunlight lands on its leaves, and inside those leaves, the tree makes its own food.
10 And the mushroom is a heterotroph too. Two ways to get food.
11 Okay, now your turn. Scientists have a name for each one.
12 Something that makes its own food using light is called an autotroph.
13 Something that takes in food from its surroundings is called a heterotroph.
14 The tree makes its own food — the tree is an autotroph.
15 The cow takes in food — the cow is a heterotroph.
16 And the mushroom?
17 It grows like a plant — but it takes in food from the log.
18 The mushroom is a heterotroph.
19 Okay, now your turn.

Source: the Peps pipeline session's landing checks, 13 October 2026; the scripts from the course's content modules.