Claudia, do you think if humans became immortal we would have to move to other planets from overpopulation? If so what

Question: Claudia, do you think if humans became immortal we would have to move to other planets from overpopulation? If so what planets would you think are habitable for us?
- Keywords:
  immortal,
  overpopulation,
  planets,
  space
Asked by anon-181546 to Claudia on 6 Jun 2018.
- Claudia Bonfio answered on 6 Jun 2018:
  
  Well, if we assume that humans can become immortal, we then would definitely have an overpopulation problem… So far we haven’t found any habitable planet unfortunately in our Solar system!
  However, if technology will be able to allow for longer space travels, we might be able to reach other galaxies where habitable planets might exist… We “just” need some water, energy and nourishment =)
  Anyway, I am a huge fan of Saturn moons, so I hope one of them will give us some hope =)

Question: Claudia, do you think if humans became immortal we would have to move to other planets from overpopulation? If so what planets would you think are habitable for us?