Life on Earth arose very early in its history so if life arising is the hard and rare step I would expect there to be many more hundreds of millions or even billions of years of conditions on Earth being seemingly ripe for it arising and it not doing so.
This argument is faulty if there is more than one hard step (and the update is not that strong, although significant, even with one step). See Robin’s paper for details.
This argument is faulty if there is more than one hard step (and the update is not that strong, although significant, even with one step). See Robin’s paper for details.