"Same number of grains of sand , same number of blades of grass , same number of humans who look exactly like each one of us , doing exactly the same things at exactly the same times . Anything anyone could imagine would HAVE to be out there somewhere . There would be planets exactly like this only dogs rule , or others exactly like this where cats rule ."
"Again , logically incorrect . That 's like saying there must be a world just like this one where water flows uphill - clearly that 's nonsense : this world has been shaped by forces that ensure water flows downhill ."
"There would be planets exactly like this only dogs rule"
"there must be a world just like this one where water flows uphill"