Holding an unspent transaction output (UTXO) is essentially like holding a favor that you can cash in at any time over everyone in the world. Everyone has to input something to acquire UTXOs weather it be monetary energy to the network when you buy, or encrypted energy to protect the network when you mine. Zaps are also now allowing for the value input of the social layer to be a means of acquiring these UTXOs. Those who provide input value in Bitcoin are rewarded with unspent transaction outputs, which in time I believe will be a call option on the world.