About 15 years ago, Elon Musk started a rocket company with a single, clear, corporate mission: to create a sustainable civilization of humans on Mars. The company is singularly focused on this idea and many of the people who choose to work there do so because they want to see humans on Mars as soon as possible, if only as a backup to civilization on Earth, where our species is under the constant threat of annihilation events.
Recently, Musk told me he will be “extremely disappointed” if SpaceX has not landed humans on Mars by 2030. More interestingly, he has repeatedly said he could build as many as 1,000 Mars rockets, each carrying 80 to 100 people before 2050. Long before that, probably in the early 2030s, SpaceX Mars rockets will begin delivering colonists to Mars. By 2050, there will be 30,000 to 50,000 people who choose a one-way trip to Mars to begin a new life. By 2050, SpaceX will have the capability to transport 80,000 people to Mars every two years, resulting in a population of about a million by 2075.