"<a href=""https://www.youtube.com/watch?v=50r-5ULcWgY&amp;t=44m50s"">44:50</a> is there a meaningful difference between "Electronic" and "Atomic"? Is there a reason the construction of DNA molecules couldn't occur in outer space? Do you have to worry about baseline atomic decay on interstellar timelines", meaning that any physical transmission of anything but hydrogen is unreliable?