Published in Learning & Leading with Technology, vol. 27, no. 4, Dec/Jan 1999-2000.Here you are on Gaia today designing a community on Mars for, say, Earth year 2030 and beyond. What will happen in the years from now until 2030? Write science fiction, future history that begins today and sets the scene for your first communities on Mars in Earth year 2030. Note: Some Internet links may no longer work.