Legendary investor Warren Buffett famously passed at investing in Tesla Inc (NASDAQ:TSLA) stock over the years in the investment portfolio of conglomerate Berkshire Hathaway Inc (NYSE:BRK)(NYSE:BRK). While Berkshire still isn't investing in Tesla stock, the company could help validate the upcoming volume production of the Tesla Semi. Berkshire Company Partners With Tesla Pilot Travel Centers, owned by Berkshire Hathaway, announced a partnership with Tesla to install Semi Chargers at multiple loc