Like Amazon, MercadoLibre has become an e-commerce conglomerate with separate businesses that bolster one another and function separately.Many investors lament missing out on Amazon. Few predicted it would evolve from an online bookseller into a retail behemoth. Nobody could have predicted that it would pioneer a cloud computing business.The list of those with regrets includes Warren Buffett, who said he was "too dumb" to invest before buying shares in 2019. This shows that missed opportunities are also a p ...