I think it's perhaps better to abandon ideas about going at high relativistic speeds to bridge large distances. There's a more practical idea in nature: become

I think it's perhaps better to abandon ideas about going at high relativistic speeds to bridge large distances. There's a more practical idea in nature: become a seed. It's how living things traverse vast distances and overcome intractable resource constraints during transit. Compact oneself into an inert crystalized form, aim rocket, launch, wait. All you've gotta do is prevent chemical/structural breakdown for a few millennia or eons. Upon arrival to destination, have a machine turn-on and reconstitute the body and voila, you're there, all refreshed and ready to explore and virtually no time has passed. Of course to do that one would have had to master biology, or maybe skip biology entirely and opt to copy oneself into a machine format, but that is likely easier than travelling at a sizeable fraction of c?