If "smart bricks" become the dominant construction material in 10 years, my boys are going to have a solid future in construction, given their passion for legos. Smart bricks are a prototype construction material made from high strength concrete. They stack and interconnect like legos: The bricks -- which are patent pending -- are much like Lego in that they come in a variety of forms for different purposes and can easily connect together, with rows of knobs along the top o