I just turned off the "auto-approve" feature in my wallet to avoid accidentally digging myself into a hole again someday. Recently, people keep talking about blockchain builders, bundles, MEV, and so on. Honestly, how much do retail investors need to understand? I think there's no need to chase the principles; just remember two points: your transaction might be "packaged and arranged" by others, so avoid pushing large amounts or high slippage trades into the busy pools; and also, don't randomly click authorize or use unknown transaction portals—it's better to be a bit slower. As for a deeper builder ecosystem, there's really no need to understand everything—just keep the loss boundary in check. By the way, the NFT royalty dispute also seems similar: creators want income, the market wants liquidity, and in the end, the pressure is transferred to the average person through transaction prices and fees... Anyway, I just want to stay alive.