Density Giveth and Taketh Away

"Learning to live with the risks of density requires recognizing that density is here to stay -- and that's a good thing," proclaims Seo. But the risks of disaster that can afflict the world's many types of dense networks - whether global financial markets, information technology networks, or coastal cities - are profound and must be managed proactively. 

For instance, says Seo, "[c]ramming more than half the world's
population and production onto a relatively small area of mostly coastal
land means that the cost of natural catastrophes of all kinds will rise
dramatically. This year's earthquake in Japan, which caused more than
$300 billion in economic damage, was just a preview; a decade and a half
from now, a single hurricane or earthquake will come with a potential
price tag of $1 trillion or more."

"Recognizing the importance of the density dynamic is essential not only
to harnessing its benefits but also to managing its costs -- and they
can be managed. Technology made megacities possible, while at the same
time making catastrophic citywide fires a thing of the past. Now that we
are building megacities of financial risk, we need to put the
equivalent of new building practices and fire codes in place to keep an
ill-timed and poorly placed financial fire from burning down a third of
the metropolis."