The stakes are high for many CEOs at Sun Valley this year, which begins this Tuesday. Silicon Valley needs to make nice with its enemies, with looming antitrust investigations that could break apart several businesses. The large media conglomerates, which have long agitated for such scrutiny of tech, are themselves still trying to rearrange the deck chairs by combining to get more scale. 

But there is one CEO, in particular, who is worth watching closely: Apple’s Tim Cook.