The language of exoplanet ranking metrics needs to change
arXiv:1708.01363 · doi:10.1038/s41550-017-0042
Abstract
We have found many Earth-sized worlds but we have no way of determining if their surfaces are Earth-like. This makes it impossible to quantitatively compare habitability, and pretending we can risks damaging the field.
Published in Nature Astronomy, Comment, 02/2017