Cellular top trumps

It is extremely hard to remain unamazed by life. Today I found out that you can buy a card game called "cell trumps" , based on the Top Trumps game whose permutations (in this house alone) run through Harry Potters 1 to 5, Dr Who, Lord of the Rings 1 to 3, Simpsons, Narnia, Movie Stars, Pop Stars 1 and 2, etc.

If you don’t want to pay £5 for a pack of cell trumps, you can win a set if you can tell Matt Brown how many other neurons a brain neuron typically connects to. As Matt says, the game is great, for example, before you discovered it, would you have known that the average adult makes 430 million gut-lining cells every minute?