Elon Musk said he'll congratulate Blue Origin if they land on the moon before SpaceX — he's focused on something else

Tesla CEO Elon Musk admitted he has sometimes made mistakes in his approach to hiring.

Alex Brandon/AP

• Elon Musk says he would congratulate Blue Origin if it reaches the moon before SpaceX.
• SpaceX is focused on a more ambitious goal of building a "self-growing city" on the moon, Musk said.
• He added that SpaceX is "more the tortoise than the hare," a reference to Jeff Bezos' tortoise post.

Elon Musk says he's happy to lose one lunar milestone if it helps him win the bigger prize.