Never have we seen two prolific celebrities with such fascinating histories talk about nothing for so long — and we were perfectly OK with it. On The Daily Show this week, Jon Stewart sat down with Christopher Walken, who stars in Stand Up Guys with equally gruff, austere actors Al Pacino and Alan Arkin. Walken and Stewart got along just fine, until the 69-year-old actor brought up his aversion to technology, and Stewart couldn’t contain his genuine laughter and surprise when Walken admitted he owned neither a computer nor a cell phone.