Buy the Dip: A Strategy for Trading 'Oversold' Shares

The video tutorial discusses a strategy involving the Russell 3000 index, focusing on buying oversold companies with an RSI below 30 and rebalancing weekly. This approach has performed well this year, with the index up 30% compared to the S&P's 10%. However, the strategy is not recommended for long-term investment. The video also highlights the impact of market sell-offs and the potential of buying the dip as a rewarding strategy this year.

What caution is given regarding the long-term performance of the discussed index?

What does the teacher suggest about the strategy of buying the dip during a broad-based sell-off?