What does passing for 4,000 yards really mean?

Jon Bois, one of the excellent minds at Secret Base, joins Ryan Nanni to talk about a very particular NFL statistical quirk. Namely: the Chicago Bears are the only franchise to never have a quarterback throw for 4,000 yards. Why is this milestone appealing? What does it actually mean to break through it? Which passers have kept other teams from joining the Bears on this list? And why should Raiders fans get free NFL Sunday Ticket next season?You can sign up for the Secret Base Patreon right here! Phantom Island is presented by Homefield and produced by Michael Surber.