Puzzle sunday (11)

I'm busy with my house and I'll keep you busy with city building, enjoy!

checklist and DNA

If I decide I need to buy a house, the way to keep my head free of endless questions is a home buying checklist. Otherwise I will use much time thinking and not doing. I can endlessly think about all difficulties that could happen. I guess that's why DNA is so practical. It is the cell's to do list, a sequential string of amino acids that are reproduced in the right order one by one. It cannot go wrong.