I think there must be countless billions of planet where life exists out there...... There are twenty million different life forms on this planet and more are discovered every day.......There has also been countless other life forms on this planet that are now extinct.... All life is constructed from its own unique collection of just so many different atoms....some where out there far away is more than likely many exact replicas of you with your exact match of atoms that eats drinks and sleeps just as you might do.....
We will find out in our life span ..........Even at the speed of light it wil take to long to travel such vast distances......:(
You are assuming that life is a chance event. It is not. Life is a black swan event: if you see one example then you know that at least one example exists. If you don't see one example, you don't know anything.
It is very annoying for people to pretend to know something when they don't.
I'm very good at annoying people. :) ....Life is a chance event .....if my mum was not in the right place for my dad to hit on her ,myself and five over siblings wouldn't be around now........ With all the countless trillions and trillions of planets .....there is not one chance in hell that we are the only living life forms out there ....