What could go wrong?

In an online presentation, Musk showed off his new Neuralink machine — and even showed off an early version of the gadget that he implanted in a pig.

“I think it’s going to blow your minds,” Musk told viewers. “It’s like a Fitbit in your skull with tiny wires.”

The mind-bending invention — meant to achieve human “symbiosis with artificial intelligence” — removes a “coin-sized” piece of a person’s skull then injects a tiny chip to assist with the motor control and other functions, according to Musk.

The circular chip, injected near the ear, will also allow people to control phones or computers with their minds, according to Neuralink, which featured the live footage on its company website.