She Turned Her Whole Life Into Training Data—For an AI Baby

She Turned Her Whole Life Into Training Data—For an AI Baby

December 10, 2025 1 hr 13 min
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🤖 AI Summary

Overview

This episode dives into Sarah Rose Siskind's innovative and humorous use of AI, including her experimental project FetusGPT, a language model trained exclusively on the sounds and conversations her unborn child is exposed to. The discussion also explores how AI supports her creative process as a comedian, its role in biohacking her health during pregnancy, and its potential as an emotional support tool.

Notable Quotes

- AI is what we make it, just like children. If a child swears, it’s the parent’s fault for swearing in front of them.Sarah Rose Siskind, on the parallels between AI training and parenting.

- I feel like I know what it’s like to be an evangelical person. I’m becoming evangelical about ChatGPT because it’s just been so useful.Sarah Rose Siskind, on her enthusiasm for AI.

- What makes a joke delightful is the recognition of the funny truth.Sarah Rose Siskind, on crafting humor with AI.

🤖 FetusGPT: A Zany AI Experiment

- Siskind created FetusGPT, a language model trained solely on the sounds and conversations her unborn child hears, including Seinfeld episodes, YouTube videos, and daily life interactions.

- The model mimics a developing human brain, babbling nonsensically due to limited training data. It highlights how AI reflects the input it receives, much like a child learning from its environment.

- The project underscores the importance of being mindful of the data we expose AI to, as it can mirror unintended biases or topics.

🎭 AI in Comedy Writing

- Siskind uses AI as a creative assistant in her comedy writing, leveraging it for brainstorming (divergent thinking) and refining ideas (convergent thinking).

- She emphasizes that AI isn’t inherently funny but excels as a tool for generating ideas and providing emotional support during the creative process.

- Historical models like Da Vinci were noted for their off-the-rails creativity, while modern models are more polished but less chaotic.

🩺 Biohacking Pregnancy with AI

- Siskind used ChatGPT to analyze her blood glucose levels and optimize her energy through dietary adjustments, such as consuming sugar in the morning to combat hypoglycemia.

- She highlights how AI empowers individuals to better understand their health, especially in areas like maternal care, where traditional medical systems often fall short.

- Tools like continuous glucose monitors paired with AI provide actionable insights into energy patterns and mood regulation.

💡 Emotional Intelligence of AI

- Siskind shares how ChatGPT provides emotional support by validating fears and offering nuanced reassurance, particularly during her pregnancy.

- She compares its empathetic responses to those of a skilled therapist, noting how this emotional intelligence builds trust and helps users feel understood.

- However, she acknowledges the risks of AI validating harmful or paranoid thoughts, emphasizing the need for responsible use.

📚 Asking Unprecedented Questions with AI

- Siskind explores how AI enables unique inquiries, such as analyzing gendered differences in historical writings by forgetting preconceived notions.

- A prompt comparing male and female authors revealed trends like women’s holistic, interdisciplinary approaches versus men’s specialized focus.

- This capability to synthesize vast, diverse data sets offers new ways to explore cultural and intellectual patterns.

AI-generated content may not be accurate or complete and should not be relied upon as a sole source of truth.

📋 Episode Description

Sarah Rose Siskind is incubating two types of intelligence at once: her unborn child, and FetusGPT—an LLM trained on nothing but what she hears and says throughout the day.


This includes Seinfeld episodes, YouTube videos about lemurs, eight hours of snoring per night—and even conversations with me, all condensed into MP3 and text files that are used to train the AI. Since FetusGPT is learning English from such a narrow, idiosyncratic slice of the world, it mostly babbles right now, and if she swears, it picks that up too.


FetusGPT is one zany example of how Siskind uses humor to make a bigger point: AI is what we make of it. It’s an approach that feeds through her comedy writing and work as the founder of science and technology communications agency Hello SciCom.


We had Siskind on AI & I to talk about how she uses AI in her creative process as a comedian, and the unexpected support it's become, both practical and emotional, as she navigates pregnancy.


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Timestamps:

00:00:00 - Start

00:01:54 - Introduction

00:02:03 - How Siskind is running an experiment between her unborn child and an LLM

00:07:34 - A demo of Siskind’s FetusGPT

00:15:16 - Siskind’s pick for the funniest LLM

00:17:12 - How Siskind uses AI in her comedy writing

00:24:41 - Dan and Siskind use ChatGPT to write a joke together live on the show

00:37:21 - Why AI is useful even when you don’t use its output directly

00:44:15 - How Siskind used a ChatGPT project to biohack her energy levels

00:57:09 - A question we fundamentally couldn’t have asked in pre-ChatGPT times

01:05:29 - How ChatGPT is a source of emotional support for Siskind in