[zamalek]

I would assume it's a practical (although not entirely useful) example of a hopfield network. If you look at the wikipedia page for it[1] there is little to no information on what you would use it for, seeing an example of practical usage is great for figuring out other practical applications for a hopfield network.

[1]:http://en.wikipedia.org/wiki/Hopfield_network

[megalodon]

You're right, it's just a practical application.

For those interested, I came across this chapter [1], which is great for learning about hopfield networks.

[1]: http://www.cs.toronto.edu/~mackay/itprnn/ps/506.522.pdf