Time and space is too large.  The infinite galaxies playing host to infinite suns shedding light on infinite planets are simply too many and too far apart to explore.  No technology will likely exist to achieve these distances.  But maybe nature has.  Matter is never destroyed, it changes.  I hope this is true too with the spirit.  For maybe in death and rebirth a vehicle already exists to traverse the heavens and grant us a new form in some new place to experience.  With this universe our playground,  our choices just might be limitless.