Validator churn refers to the continuous process of validators entering and exiting a blockchain network, particularly those that use a proof-of-stake consensus mechanism. Validators play a crucial role in maintaining the integrity and security of the network by validating transactions and creating new blocks.When a validator joins the network, they must stake a certain amount of cryptocurrency as collateral. This incentivizes them to act honestly and contribute to network operations. Validator churn can occur due to several reasons, such as changes in rewards, network performance, or personal decisions of validators.High churn rates may lead to instability as too many validators come and go, affecting transaction speeds and network security. Conversely, low churn can indicate a more stable environment, with consistent participation from a dedicated set of validators. Understanding validator churn is essential for assessing the overall health and security of a blockchain network, as it can influence both user trust and investment decisions.