The Ideal World:
In the first illustration (figure 1), we start with a message from a user on one computer, and we want to send it to a recipient on a different computer.
As you can see, the message finds its way to the recipient computer, by the most direct route,
which may often take it through intermediary computers along the way.
When things break down:
The next illustration (figure 2) shows the classic scenario of the Internet being subjected to irreparable damage to one of its nodes. The necessity still remains to get a message from one server to another. The system was designed to route packets via the most optimum available route.
Fortunately, the structure allows it to adapt quickly to damage, and we can route the message "the long way around" if necessary. As you can see, the message here gets through because there is no single point of failure.
ICANN and Alternative Roots:
Once again, here is an illustration (figure 3) with a single point of failure for the DNS root, surrounded by various Inclusive Roots. ICANN, now perceived by the Internet Community as failing to provide the necessary competition, has become a critical point of failure on the internet. Fortunately, as explained in the examples above, the Internet will route around a point of failure.
Vint Cerf, the new Chairman of ICANN, stated on CNN recently that no new TLDs have been introduced in the last 10 years, justifying ICANN is able to handle a very difficult and complex task. The statement wasn’t entirely true since there were 30 country-code TLDs added in 1995, 31 added in 1996, 47 added in 1997, 2 added in 1998, 1 in 1999. There have, in fact, been well over 100 ccTLDs added to the U.S. Government root in the last five years. There have, however, been no "generic" or gTLDs added in the last 10 years.
The lack of free market access to the U.S. Government root, which is wholly managed by ICANN, means that the root system is not inclusive, but rather exclusionary, causing ICANN to be seen by the Internet as a point of failure.
In comparison, the ORSC Root has added all of the above ccTLDs, and over 100 additional gTLDs to what was the IANA root, making it 100% compatible with the current U.S. Government root, and yet serving an Inclusive Name Space at the same time.