Let's talk about oracles.
Price feeds are generally updated on-chain when the deviation exceeds a set threshold or after a certain amount of time.
One thing many people overlook: using the spot price from a single DEX pool as a price feed carries significant risks. When the pool is small, a single flash-loan trade could skew the price.
When choosing a DeFi protocol, pay attention to its price feed solution. The more concentrated the price sources, the higher the risk.
$LINK is the token of Chainlink, a decentralized oracle. Currently 9.969.