By Tanner Garrity There’s a movie that came out seven years ago called The Intern, in which Robert De Niro plays Ben Whittaker, a 70-year-old widower looking to get back out into the world. He secures a “senior intern” position at Jules Ostin’s (Anne Hathaway) Brooklyn-based, e-commerce fashion startup, a company that’s about as far out of his wheelhouse as possible. (Whittaker previously worked for a since-shuttered company that printed yellow pages.) It’s a goofy movie, a plane movie, with a low-stakes plot and favorable reviews. But it’s also a fantastic blueprint for the benefits of treati…