In the 1990s, Dennis Wayne Hope committed a series of armed robberies. After proving adept at escaping prison, he was put in isolation. He has been there for nearly three decades.His case, if the Supreme Court agrees to hear it, could answer the fundamental question of how long people can be held in solitary confinement.Guest: Adam Liptak, a reporter covering the Supreme Court for The New York Times.Want more from The Daily? For one big idea on the news each week from our team, subscribe to our newsletter. Background reading: Mr. Hope has spent more than half his life in solitary confinement, in a cell that is nine feet long and six feet wide — smaller than a compact parking space.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.