Recently, people have been talking about "data availability/ordering/finality" in a mystical way. I just focus on one main line: who do you trust, how long are you waiting, and whether it can be rolled back if something goes wrong. Others think that using a certain module automatically makes it safer and more decentralized, but in reality, it just splits the risk into three parts, and delays and costs will also shift. The current buzz about staking and shared security, with this "yield stacking," essentially boils down to one thing: more yield layers may also mean more liquidation and finality window periods. My approach is very simple: check the liquidation threshold, look at the interest rate curve, and see who can make the call during a failure; no matter how new the terminology, don’t ignore these parameters.