listening hw

questions from the "this american life" episode on mapping:

There was an interesting point made that not everything needs to be mapped out alongside streets.. what other base points of reference could make a map easily accessible and still meaningful to the general viewer?

How long will it be before there are interior sound designers, who, as suggested in the episode, will accessorize an office or other room according to what sounds of appliances work together?

What are the intervals between all the background sounds in the lab? Do they actually affect our moods unconsciously?