Hacker News Reader

We also have three rocky planets in the habitable zone. That's not sufficient to actually make them habitable.

I dunno, there's pretty strong evidence that one out of the three here is, in fact, habitable.

Whether it harbors intelligent life, however, is still up for debate.

By the looks of it, we still have a long way to go. :)

So far, we're not doing any better than cyanobacteria -Ray Pierrehumbert.

(The start of photosynthesis by cyanobacteria nearly killed all life on the planet.)

even worse: it's full of aliens!