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Ever since Amazon turned its gaze to healthcare, questions about the eCommerce operator's plans and intentions have outnumbered answers. That's still true, and may remain so for the time being, but this week new details emerged that, at the least, is shedding light on Amazon's healthcare vision. Here's the scoop, courtesy of court testimony: Amazon wants to, in the words of The Wall Street Journal, "redesign health insurance." And that's only one possible aim -- others involve using artificial intelligence to improve diagnoses and the overall patient experience, but we'll get to that in a bit. Among the biggest ongoing mysteries for even the most sophisticated Amazon watchers is the specific purpose of the independent healthcare company that includes Amazon, Berkshire Hathaway and JPMorgan Chase, a venture that was announced last year. Thanks to a lawsuit and unsealed court testimony over a non-compete clause involving a United Healthcare executive who joined that Amazon-backed venture, at least one of the goals of the venture -- which still has no official public name -- has emerged.