FILE PHOTO: A real estate listing sheet for 3D printed house for sale is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri/File Photo
FILE PHOTO: A real estate listing sheet for 3D printed house for sale is pictured in Long Island, New York, U.S., February 11, 2021. Picture taken February 11, 2021. REUTERS/Carlo Allegri/File Photo