brothers michael and emilio ruggieri are betting on a comeback for boston's downtown. >> i have a goodernoon. >> for three decades, they've been serving up breakfast and lunch to the office crowd here, office workers were a big part of your business. how big? >> 75, 80%. >> and now maybe 50, maybe 50. so then how do you make up for that lost revenue for those lost sales? >> we've been doing more deliveries for the construction guys have actually kept us going. >> they've also reduced their staff, trimmed their menu and shorten their hours to make ends meet. confident things will turn around. i'm going to eternal optimist, and the buildings are way too expensive to just stay empty. >> so someone's going to take over the space so we're hopeful. >> it's an interesting dilemma right there. a lot of people want to work from home, but these cities need people in them to function. >> and when you think of like new york city, this was an interesting stat. some estimate only 3% of our office buildings are suited to convert to residential. so you think that there would be all this space, but the