巴菲特致股东的信原文精读Day801：

原文：For nearly three decades, the initial paragraph of Buffett’s annual letter featured the percentage change in Berkshire’s per-share book value. It’s now time to abandon that practice.

By 2018，the annual change in Berkshire’s book value lost the relevance it once had. Three circumstances have made that so. First, Berkshire has gradually morphed from a company whose assets are c