Joe Biden is 78 years old today. He will be the oldest president ever when he takes office in January. But is 78 actually that old? Will Leitch has some thoughts on how it’s not as old as it used to be — and offers an array of vital septuagenarians to prove his point: “Harrison Ford is 78. Judge Judy is 78. Joy Behar is 78. Barbra Streisand is 78!… 78-year-olds are doing amazing things all the time.”