What does Mayor think about humans migrating to exoplanets?
We will move within a decade
It's already happening
Humans will never migrate to such exoplanets
We are actually Martians
Answer
Mayor does not think that humans will ever migrate to exoplanets. He thinks that humans are not ready to make such a large and dangerous journey, and that it would be better to focus on making Earth a better place to live.
Exploring the Starry Universe: The Michel Mayor Quiz