The Optimus robot weighs 154 pounds and is going to be produced where the Model S and X vehicles were made.

The Tesla CEO went on and on about how difficult it is to design a robot, including considerations like wear and tear, achieving dexterity with the robot’s hands, and making sure it doesn’t break down. Musk also stressed that it would be difficult to produce the robots.

Tesla's most credible challenger this summer isn't in Detroit, and one of the three fights isn't one Musk has entered.

The next product race may not be fought on the highway. If Tesla and Space X CEO Elon Musk is right, it will play out on factory floors, in warehouses and eventually inside homes, where humanoid robots could become

Trillionaire Elon Musk aims to have rockets blast off from Earth before the end of 2026, sending the first materials to the moon and Mars to start building colonies. The world’s first trillionaire is then planning to send robots to prepare the infrastructure needed for humans to survive.

In results issued after markets closed Wednesday, the Austin company said revenue jumped to $28.24 billion. Still, profit fell as spending rose.

It is unclear how his dark vision of the future outside America fits with his AI utopianism. But even Mr Musk wonders if it all makes sense. At times, he says, he believes in a theory in which the universe is a computer simulation created by aliens. “The things I’m doing are so preposterous that it’s hard to believe they’re real.” ■

Elon Musk said that AI risks exist but should not halt progress because it could lead to an "age of amazing abundance."