Jordan Harrison’s play, an AI drama of very real intelligence, makes a timely Broadway debut.

Much of the pre-opening press about this revival has revolved around the 96-year-old Squibb, who might be the oldest actor ever to play a principal role on Broadway. She merits that attention with a remarkable performance that combines frostiness and fogginess into a firm coat of rime. But the other actors are equally good. Burstein, who radiates human tenderness, is perfectly employed as the play’s kindest character, and his final scene is devastating; Lowell finds the appropriate levels of stiffness and charm for his faux Walter. And Nixon is simply the best I’ve ever seen her onstage: As Tess labors to connect with her mother—or alternatively to give up any hope of connecting with her—Nixon invests her testiness with complex underlying notes of bitterness and exhaustion.