Meaningful growth versus metric manipulation is a critical distinction. Metrics alone can drive decision-making, but they can also be manipulated to achieve short-term gains, leading to false positives and misleading conclusions. The "Rat Effect" illustrates how rewarding behavior can lead to undesirable outcomes when metrics are used as proxies for user behavior. To create meaningful growth, efforts should focus on removing friction, relocating it, or pointing users in the right direction. Removing friction is often more effective than tweaking metrics, and paired metrics can help mitigate adverse consequences of a single metric. Ultimately, the goal is to drive long-term value creation rather than short-term gains, requiring careful consideration of metrics and their limitations.