[E. Pluribus Unum]

Musk: “Patient is able to move a mouse around the screen by just thinking,” he reportedly added.

Me: "I think by 'mouse' he means 'cursor.'”

You: "No. He means telepathy."

Try rereading what I said. "Move a mouse around the screen" is an obvious reference to a computer screen.

[Jonty30]

It was joke.
It would be awesome if he was actually moving a mouse or putting pots and pans on the stove to make dinner or float pajamas out of the closet.