I realise that my last entry was pretty dull, so I found out an interesting little fact to keep your interest.
There are 100-150 billion neurons in the human brain.
Each neuron may connect with around 10,000 other neurons.
If each neuron connected with every other single neuron, our brain would be 12.5 miles in diameter (Nelson & Bower, 1990). This is the size of greater London.
Taken from Jamie Ward's book 'The students guide to cognitive neuroscience', chapter 2.