How Does the Randomness in PoA Selection Relate to Random Walk Theory in Finance?

The randomness in PoA validator selection, based on VRFs, relates to the concept of a random walk in finance, which posits that stock prices move randomly and are unpredictable. While the PoA selection is pseudorandom and verifiable, the unpredictability of who will sign the next block is analogous to the market's unpredictability.

Both rely on a process that is designed to be free from exploitable patterns.