But we also don't know how life started. There's a big gap between the simple organic molecules that pop up everywhere, and metabolizing reproducing life, and w

But we also don't know how life started. There's a big gap between the simple organic molecules that pop up everywhere, and metabolizing reproducing life, and we have no idea how many improbable events had to occur to bridge that gap. For all we know, it takes a whole universe rolling those dice before it's likely to happen even once.