Here is an interesting theory about why there is big possibility that there is something after death.
We all know that when we drop the book it fells on the ground. We have learned that because of our experinces since a child that this law works 100%.
Now we don't know what was before us but we know that we are ALIVE in this moment This is also 100%. So why should life stop but the book will always keep falling down.
The problem here is that we have only ONE experince about life. We don't know what was before this life. On the other hand we have many more experiences about a book falling down so we defently KNOW that a book will fall. If we look from the third person view, imagine seeing your life, OK I live, I live, I live,. oops; - I stopped living.? From this point we can persume that if we are alive, we will ALWAYS be alife.
What do you think?