How Does Proof of Work Inherently Resist Sybil Attacks?

Proof of Work (PoW) inherently resists Sybil attacks by making it economically infeasible to create a large number of fake identities. In a PoW system, influence is proportional to computational power, not the number of identities.

To have a significant impact on the network, an attacker would need to control a significant amount of the network's hash rate, which is very expensive. This makes it difficult for an attacker to create a large number of fake nodes and gain disproportionate influence over the network.