That might be the case. Or you could be part of something else. A collective consciousness, of which you are a transient node. Or maybe there is no time at all. What we call time could just be our current state on a progress bar as we process life. Or maybe we're part of a nervous system for some larger construct. Or perhaps we are just reluctantly self-aware iterations of bio computers with fleeting lives that appeared through the chance combination of carbon-based structures.

Who knows. That's the beauty of it, which I personally feel religion and a certain type of confident atheism tend to deny with their respective faith/certainty.