Gas

The fee paid to a blockchain’s miners incentivizes them to run a node, thereby providing computing power to secure the blockchain. The protocol determines the amount of gas to be awarded for the creation of each block. This security of the blockchain gives the cryptocurrency value because it is constantly and verifiably secure, which then creates an infinite feedback loop. As an example, “gas” is the postage required to send a letter (transaction) in the mail. There is a minimum amount, which is dictated by the market, but is relatively stable and updates in real time.