"The Key Barrier to Berkshire Hathaway's Growth, as Revealed by Warren Buffett"

Warren Buffett believes the biggest challenge facing Berkshire Hathaway's ability to generate outsized returns for shareholders is the law of large numbers, as the company's market cap approaches $1 trillion. With most of its businesses in steady cash-generating industries, finding new businesses to invest in becomes increasingly difficult, especially as many potential opportunities are overpriced. Despite a record cash hoard of $167.6 billion, Buffett remains somewhat pessimistic about the company's future growth potential, suggesting that returns for shareholders may only be "a bit better than the average American corporation."