10 Noah, his wife, his sons, and their wives may have
worked on building the ark for some 50 years.
That's why we need to be patient, for god's sake. If you are even thinking about being concerned about how long it takes, just don't forget that Noah may have worked 50 years on the ark. (Let's see....1879 to 2011...)
The door to door work gives us all something to do while we wait.