Big Red Machine, the side project of Bon Iver‘s Justin Vernon and The National‘s Aaron Dessner, are teasing their return, with fans speculating that Taylor Swift is involved.The duo posted a teaser on Instagram for what appears to be a new project called ‘How Long Do You Think It’s Gonna Last’.They’ve also launched a website, howlongdoyouthinkitsgonnalast.com, which features similar artwork as the teaser and a clock counting down.A post shared by Big Red Machine (@bigredmachineadjv)Fans were