Myopia, also known as nearsightedness, is a cognitive bias that causes individuals to place too much focus on internal or short-term issues while neglecting broader, long-term, or external risks. During scenario analysis, internal staff may suffer from myopia due to their close involvement with the firm's day-to-day operations. An external expert brings an independent and broader perspective, which is highly effective in mitigating this bias and ensuring a comprehensive assessment of potential scenarios.