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.^»^^^^†££    ##  mass-production treehouse  ##     ££†^^^^»^.
.^^^^»^££#     »»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»      #££^»^^^^.
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.^»^†££###                                          ###££†^»^.
....^^†££#   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.               ££^»......
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.^»^†£####   the lowest floor would usually have a  ####£†^»^.
.^»^†££### loading dock, a balcony/front door, and  ###££†^»^.
.^»^^^†£££             various ladders.             £££†^^^»^.
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.^»^†££###        »»»»»»»»»»»»»»»»»»»»»»»»»»        ###££†^»^.
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.^»^†££###     † climate ^ housing ^ modular †      ###££†^»^.
.....»†††£        † suburbs ^ open source †         £†††».....
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