According to Foresight News, Vitalik Buterin recently responded to a query on X about what constitutes a global blockchain. Buterin described blockchain as a 'truth machine' that, in a specific sense, provides a consensus on when messages are sent. However, he clarified that it does not determine the veracity of events, such as whether a moon landing occurred. This characteristic significantly reduces the attack surface of blockchain technology. Nonetheless, Buterin emphasized that additional tools are necessary to discover or assist in uncovering such truths.