Originally posted by
Aragorn
The universe does not seek entropy, but it generates entropy as a side-effect of generating order. It has to do this, because you cannot have complexity and sophistication without entropy. Life itself is one big entropy generator.
Think of it as the peeling of a banana. The farther you pull the peel down in order to expose the edible flesh of the fruit, the more of the peel you'll have in your hand.
Computers are similar. The longer a computer has been running, the more entropy it generates, and this entropy is then used in the encryption of passwords, filesystems (if and where applicable), and digital signatures. Computers that have only just booted up have relatively low entropy. The more you use the computer, the more entropy it generates. ;)