Does something without an ending have a begining?

This topic raises alot of questions, atleast to my mind. It seems to me that the thought of the universe existing forever is easier to comprehend to most people than the thought that the universe has always existed. most people tend to believe that it all must have started somewhere. so a common believe is that once upon a time it all started and that we will live forever after, just like the fairy tales. I find it reasonable to think that if it all started out of nothing, then it is not unlikely that everything is potent to wink out of existence sometime in the future, if not at anytime. philosofically i believe this point of view raises the posability for everything to continuely wink out and come back in to existence because we cant be aware of nothingness to realise this switching, and nothingness would by definition not affect existence without becoming something. but this is abstract hypothetical thinking without any practical relation to our existence.

As it is likely to think that something that has an ending must have a beginning, it is just as likely to think that something that doesn't have an ending also does not have a beginning. My question here is which is hardest to believe: 'something' created out of 'nothing', and 'something' being able to wink out and leave 'nothing', or 'something' to always have existed and never will cease to exist?

further discussion follows.