When explaining bitcoins advantages over cash to someone else, there are a few things that come to mind:

1. They cannot be counterfeited
2. Can be sent anywhere in the world with no (or very very low) fees
3. Mining fees dont go to big banks
4. Low transaction fees, coinbase estimated bitcoin could reduce payment processing fees worldwide from $500 billion to $50 billion, so 1/10th of current level

Any other to add to the list?