[Digital Today reporter Chi-gyu Hwang] Sleep disorders and cognitive overload symptoms are spreading among developers who overuse AI coding tools, Axios reported on April 4 (local time).

OpenAI co-founder Andrej Karpathy (안드레이 카파시) said on the "No Priors" podcast that since last December he has been in an "AI psychosis" state, spending 16 hours a day issuing commands to AI agents. He said the share of code he writes himself versus code left to AI flipped completely after December, from 80 to 20 to 0 to 100. He also said that when he has tokens left at the end of the month he becomes "extremely anxious" and rushes to use them up.

Y Combinator CEO Garry Tan (개리 탠) described his experience with coding tools as "cyber psychosis" on social media in January, saying, "Yesterday I stayed awake for 19 hours and fell asleep at 5 a.m."

Tan warned a startup founder who boasted that his chief technology officer had gone without sleep for 36 hours, saying it was an "unhealthy way."

Developer and blogger Simon Willison (사이먼 윌리슨), who has 25 years of experience, said on the Lenny's podcast, "Human cognition has limits," and that "giving up sleep to do agent coding is unsustainable." He pointed to gambling and addiction elements in how AI coding tools are used.

Rootly co-founder and chief technology officer Quentin Rousseau (퀑탱 루소) said that after switching to agent coding he could not sleep for several months and eventually had to be prescribed sleeping pills.

He added, "AI coding tools work like slot machines," and "You enter a prompt and get an answer and the coding moves forward, but sometimes the agent fails completely." He said, "Founders become the first to get addicted to these productivity tools. It feels like we are the first victims of this system."