When writing my re-imagining of the Titanic disaster, I tried to take the luxuries and appointments of the 1912 ocean liner and put updated versions in my futuristic spaceliner. Titanic boasted a heated swimming pool, in First Class, only the second of its kind anywhere. (The other was on her sister ship Olympic, launched the year before.) For the Nebula Dream’s passengers, since weight and mass aren’t a problem in outer space, I envisioned one entire level of the ship being given over to a r...