Smart contracts could potentially become widespread in coming years, but they generally need a source of truth to provide real world utility.Oracles ensure that smart contracts are provided with accurate information and ChainLink is currently the leading oracle platform.The LINK token could appreciate significantly, depending on how widely smart contracts are used and ChainLink's market share.There is also uncertainty about how value created by the ChainLink network will accrue to the LINK token in the event ChainLink is successful.