Ammaar Reshi was playing around with ChatGPT, an AI-powered chatbot from OpenAI when he started thinking about the ways artificial intelligence could be used to make a simple children’s book to give to his friends. Just a couple of days later, he published a 12-page picture book, printed it, and started selling it on Amazon without ever picking up a pen and paper.

The feat, which Reshi publicized in a viral Twitter thread, is a testament to the incredible advances in AI-powered tools like ChatGPT—which took the internet by storm two weeks ago with its uncanny ability to mimic human thought and writing. But the book, Alice and Sparkle, also renewed a fierce debate about the ethics of AI-generated art. Many argued that the technology preys on artists and other creatives—using their hard work as source material, while raising the specter of replacing them.

Reshi, a product design manager from the San Francisco Bay Area, gathered illustrations from Midjourney, a text-to-image AI tool that launched this summer, and took story elements from a conversation he had with the AI-powered ChatGPT about a young girl named Alice. “Anyone can use these tools,” Reshi tells TIME. “It’s easily and readily accessible, and it’s not hard to use either.”

His experiment creating an AI-generated book in just one weekend shows that artificial intelligence might be able to accomplish tasks faster and more efficiently than any human person can—sort of. The book was far from perfect. The AI-generated illustrations had a number of issues: some fingers looked like claws, objects were floating, and the shadowing was off in some areas. Normally, illustrations in children’s books go through several rounds of revisions—but that’s not always possible with AI-generated artwork on Midjourney, where users type a series of words and the bot spits bac