Top astronomer criticizes Elon Musk's Mars ambitions as a dangerous illusion, advocating for solving Earth's problems first. Former US President Barack Obama also expresses similar concerns, preferring investment in taking care of Earth.
Key Points
Musk's plan to bring over a million people to Mars by 2050 is criticized
Martin Rees believes solving Earth's problems should take precedence over Mars colonization
Barack Obama supports investing in taking care of Earth rather than colonizing Mars
Cons
Musk's Mars ambitions may be a dangerous illusion
Focusing on solving Earth's problems should be a priority
Mass migration to Mars to avoid Earth's issues may not be feasible