.##.#.##..                                          .#...##...
#.#.#..#.#                                          .#..#.#...
#.#.#.##.#                                          .#.##.#..#
#.#.#..#.#                                          .#..#.#.#.
#.#.#.##.#                                          .#.##.#.#.
#.#.#..#.#    \\                             \\     .#..#.#.#.
#.#.#.##.#      ===============================     .#.##.#.#.
#.#.#..#.#    ##  mass-production treehouse  ##     .#..#.#.#.
#.#.#.##.#     ===============================      .#.##.#.#.
#.#.#..#.#     \\                             \\    .#..#.#.#.
#.#.#.##.#                                          .#.##.#.#.
#.#.#..#.#   created in the twenty eighties as a    .#..#.#.#.
#.#.#.##.#   cheap and open source way of dealing   .#.##.#.#.
#.#.#..#.#  with constant floods and a rising sea   .#..#.#.#.
#.#.#.##.#                  level.                  .#.##.#.#.
#.#.#..#.#                                          .#..#.#.#.
#.#.#.##.#  the "house" would consist of a stack of .#.##.#.#.
#.#.#..#.#  floor modules, each a square of thirty  .#..#.#.#.
#.#.#.##.#  six square meters. these could be made  .#.##.#.#.
#.#.#..#.#  out of various materials such as carbon .#..#.#.#.
#.#.#.##.#  fiber or plastic, not necessarily the   .#.##.#.#.
#.#.#..#.#           same for each floor.           .#..#.#.#.
#.#.#.##.#                                          .#.##.#.#.
#.#.#..#.#  the house would be hung on a "mast", a  .#..#.#.#.
#.#.#.##.#   ridged metal pole extending between    .#.##.#.#.
#.#.#..#.# fifty and a hundred meters. a mechanism  .#..#.#.#.
#.#.#.##.#  within each floor would enable them to  .#.##.#.#.
#.#.#..#.#  climb up or down the mast, together or  .#..#.#.#.
#.#.#.##.#              individually.               .#.##.#.#.
#.#.#..#.#                                          .#..#.#.#.
#.#.#.##.#   the lowest floor would usually have a  .#.##.#.#.
#.#.#..#.# loading dock, a balcony/front door, and  .#..#.#.#.
#.#.#.##.#             various ladders.             .#.##.#.#.
#.#.#..#.#                                          .#..#.#.#.
#.#.#.##.#       \\                        \\       .#.##.#.#.
#.#.#..#.#        ==========================        .#..#.#.#.
#.#.#.##.#       \\                        \\       .#.##.#.#.
#.#.#..#.#                                          .#..#.#.#.
#.#.#.##.#      % climate ^ housing ^ modular %     .#.##.#.#.
#.#.#..#.#        % suburbs ^ open source %         .#..#.#.#.
#.#.#.##.#                                          .#.##.#.#.
#.#.#..#.#                                          .#..#.#.#.
#.#.#.##.#                                          .#.##.#.#.
#.#.#..#.#                                          .#..#.#.#.
#.#.#.##.#                                          .#.##.#.#.