"A project to create a comprehensive graphical representation of the internet in just one day and using only a single computer has already produced some eye-catching images. ...
"Some efforts to produce images of the internet have taken months to complete. Lyon reckoned he could quickly provide a simple picture of all the networks linking internet nodes using a standard networking program. After a colleague challenged him to prove that he could, Lyon began his mapping project, called Opte."
We often care little for that which we cannot see or measure. This map is yet another example of how ever-cheaper computing allows people to easily make visible that which before was hidden - in this case, the underlying structure of a collaborative technology. Knowing things' shapes (and sizes and volumes and frequency and so on) allows you to work with them in unprecedented ways; to make sharp, informed and novel decisions; to experience them - to care.
And the map itself is quite pretty, I think.