Grow your own house
It's so much work to build houses. Can't we genetically code a seed? You throw it in the ground, water it, and prune it. It grows into a house next year.  "Let's plant our next house."  "We need a seed that can grow on a rocky soil."  "Our house is a bit crowded, we need a few new rooms"  "Okay, I will let that few branches grow, it's going to be Lily's bed room. "  "I want my own bathroom"  "Sure, in a couple of months, your own suite will be read. You will have to walk a few more steps, honey."  "Son, don't think it's time for you to grow your own house?"  Biology is the answer. Let's play God. Huhhhh~  An't we the most efficient machine? adaptive to our environment; a machine can reproduce itself; self maintained; Self upgrade through giving birth to a slightly different version of us;