Group 1 - The core viewpoint emphasizes that understanding the intrinsic value of companies is more important than short-term market trends [1] - Companies that cannot provide cash returns to shareholders are deemed unsustainable, regardless of their short-term performance [2][3] - Historical examples illustrate that companies requiring continuous capital investment for growth often fail to deliver real shareholder value [2][3] Group 2 - Short-term performance can lead to inflated valuations, but sustainable growth is essential for long-term investment success [5][6] - The risk of valuation decline and unsustainable growth is highlighted, as seen in past market trends [5][6] - Investors should focus on companies with stable historical performance and consistent cash flow to mitigate risks associated with short-term volatility [8]