A student from Shanghai Jiao Tong University named Liang, a senior majoring in Applied Mathematics, only 21 years old.

Recently, he stayed up all night, using two Google Homes, a wire, and an old computer to build an automated trading robot.
It cost a total of $40, mostly spent on wires—according to him, if the wires are connected messily, "it looks unprofessional, and the market would never take you seriously."
The Polymarket official website is here:
The microphone on the Google Home above is turned on all day, listening to world news.
The one below directly calls the old computer's GPU to run local models, not connected to the cloud, with no API fees at all.
In the middle runs Claude Code, which he only gave one command: "When you hear market events, open a position on Polymarket, with risk per trade not exceeding 3%, and decide the rest yourself."
In the first month, this robot, which he named "Wenwen," placed 187 trades, with 138 profitable.
It monitored a market like this:
He made $2,340, more than his total income from tutoring and delivering food over half a year.
His roommate looked at the tangled wires he was fiddling with, thinking he was soldering some handmade art piece.
The dorm supervisor checked once, looked at it, and said, "Oh, it's just a music player."
His parents still think their son is just waiting for their monthly allowance.
Liang didn't correct them—Wenwen works more quietly than all of them combined, and that's what he's most proud of.
If he wants to do copy trading on Polymarket, he uses this: