The value of an item - in the mind of a consumer - is simply the difference between the anticipated price and the price on the tag.
String Theory describes energy and matter as being composed of tiny, wiggling strands of energy that look like strings. And the pitch of a string's vibration determines the nature of its effect.
The salability of an item can often be improved while the value itself remains unchanged.
In essence, String Theory describes space and time, matter and energy, gravity and light, indeed all of God's creation... as music.
A smart man makes a mistake, learns from it, and never makes that mistake again. But a wise man finds a smart man and learns from him how to avoid the mistake altogether.
A visual image is a simple thing, a picture that enters the eyes.