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Just off Cambie Street this afternoon, I think I may have seen the future -- at least of home construction: ICFs, or Insulating Concrete Forms -- Lego-like concrete forms made out of Styrofoam that becomes the insulation of the finished wall. ICF's are a 60-year-old technology gaining new popularity in earthquake-prone areas because the concrete walls produced by ICFs can be as much as 10-times stronger than traditional concrete walls formed with wood sheets.