While my consciousness happens to be at this time running on biological neurons, current technical limitations aside, there is no reason why the underlying process logic that makes up my consciousness could not one day be made to run on a different medium, one more suited to traveling large distances through space.
I don't think that it's practical or necessary to preserve a physical human being during space travel, instead we could invest in technologies that would allow a consciousness to be stored and assume a form that is adapted to the environment it wishes to explore.
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While my consciousness happens to be at this time running on biological neurons, current technical limitations aside, there is no reason why the underlying process logic that makes up my consciousness could not one day be made to run on a different medium, one more suited to traveling large distances through space.
I don't think that it's practical or necessary to preserve a physical human being during space travel, instead we could invest in technologies that would allow a consciousness to be stored and assume a form that is adapted to the environment it wishes to explore.