Life got going on Earth very early on, now perhaps it was a lucky fluke, but it happened early.
When you consider that there are perhaps 100 Billion stars in a typical galaxy, and in the observable universe there are perhaps 200 billion to 2 trillion galaxies, for me personally, I can only conclude that the universe is teeming with life.
Lets say Earth was a 1 in a million, that still means there are perhaps 1000 planets in our galaxy which contain life. Now if you multiply that by the number of galaxies you end up with billions.
Now intelligent life is a whole different beast, it could be that within a single galaxy civilisations come and go at different periods and never exist at the same time. Civilisations which are in different galaxies will find it extremely hard to contact each other.
Life got going on Earth very early on, now perhaps it was a lucky fluke, but it happened early.
When you consider that there are perhaps 100 Billion stars in a typical galaxy, and in the observable universe there are perhaps 200 billion to 2 trillion galaxies, for me personally, I can only conclude that the universe is teeming with life.
Lets say Earth was a 1 in a million, that still means there are perhaps 1000 planets in our galaxy which contain life. Now if you multiply that by the number of galaxies you end up with billions.
Now intelligent life is a whole different beast, it could be that within a single galaxy civilisations come and go at different periods and never exist at the same time. Civilisations which are in different galaxies will find it extremely hard to contact each other.