Question: Who was a non-fiction writer, Isaac Bashevis Singer or Alvin Toffler

full_context: Document 1: Lawrence Taub: Lawrence Taub is a futurist and the author of the book "The Spiritual Imperative: Sex, Age, and The Last Caste" (Clear Glass Press, 2002, ISBN  ).
Document 2: Eleanor Mlotek: Eleanor Chana Mlotek (née Gordon; April 9, 1922 – November 4, 2013) was a musicologist, specializing in Yiddish folklore. Isaac Bashevis Singer, the Yiddish writer and Nobel laureate, once called Mrs. Mlotek and her husband, Joseph, “the Sherlock Holmeses of Yiddish folk songs.” WorldCat lists her as author of 70 works in 112 editions, in 6 languages. They include both collections of music and exhibition catalogs of Yiddish authors. She held the position of Music Archivist at the YIVO Institute for Jewish Research, and was also a columnist at the "Yiddish Forward" for over forty years. She was born in Brooklyn and is the mother of Zalmen Mlotek, the artistic director of the Folksbiene.
Document 3: Ivo Andrić: Ivo Andrić (Serbian Cyrillic: , ] ; born Ivan Andrić; 9 October 1892 – 13 March 1975) was a Yugoslav novelist, poet and short story writer who won the Nobel Prize in Literature in 1961. His writings dealt mainly with life in his native Bosnia under Ottoman rule.
Document 4: Florian Brody: Florian Brody is an Austrian/American digital media creator, inventor, writer, public speaker, academic, and global business consultant. He is best known for his contributions to the invention and development of Expanded Books, an early form of E-books, at the Voyager Company, and for his writings and public speaking about digital media innovation and marketing, including multiple TEDx talks in Austria, as well as his 1999 essay "The Medium is the Memory," originally published in MIT Press's "The Digital Dialectic: New Essays on New Media", edited by Peter Lunenfeld. Brody currently serves as principal at The Halo Agency, which supports European start-up businesses looking to enter the US market by counseling them on cultural and economic differences between their countries and the United States.
Document 5: Irene Lieblich: Irene Lieblich (April 20, 1923 – December 28, 2008) was a Polish-born artist and Holocaust survivor noted for illustrating the books of Nobel laureate Isaac Bashevis Singer and for her paintings highlighting Jewish life and culture. She is also a distant cousin of noted Yiddish language author and playwright Isaac Leib Peretz.
Document 6: Isaac in America: A Journey with Isaac Bashevis Singer: Isaac in America: A Journey with Isaac Bashevis Singer
Document 7: Alvin Toffler: Alvin Toffler (October 4, 1928 – June 27, 2016) was an American writer, futurist, and businessman known for his works discussing modern technologies, including the digital revolution and the communication revolution, with emphasis on their effects on cultures worldwide.
Document 8: Robert Buderi: Robert Buderi is an American journalist, author, and editor. Buderi also served as technology editor of BusinessWeek from 1990–1992 and editor-in-chief of MIT's Technology Review from 2002-2004. He was a Research Fellow in MIT's Center for International Studies from 2005-2007. In June 2007, he launched Xconomy, a business and technology blog in Cambridge, MA. Another notable accomplishment of Robert Buderi is his book; "The Invention That Changed The World: How A Small Group of Radar Pioneers Won the Second World War and Launched A Technological Revolution". Published in 1996 by Simon and Schuster This book encompasses the technology of radar, or RAdio Detection And Ranging, and argues how it determined the outcome of some very infamous WWII battles. Some of the most prominent battles included in the book include the Battle of Britain, Battle of the Atlantic, and the Battle of Midway. Buderi also argues that radar innovations eventually led to Allied victory in the war. The book also includes information about how radar technology led to major innovations in space exploration during the Cold War era. Buderi demonstrates his masterful knowledge of the topic and solidifies his position as a prominent radar historian. This techno-thriller touches on important historical events, while also establishing connections to the process, and benefits of innovation to mankind.
Document 9: Elie Wiesel: Eliezer "Elie" Wiesel KBE ( , Yiddish: אליעזר ויזל‎ , "Elyezer Vizel"; September 30, 1928 – July 2, 2016) was a Romanian-born American Jewish writer, professor, political activist, Nobel Laureate and Holocaust survivor. He was the author of 57 books, written mostly in French and English, including "Night", a work based on his experiences as a prisoner in the Auschwitz and Buchenwald concentration camps.
Document 10: Israel Joshua Singer: Israel Joshua Singer (Yiddish: ישראל יהושע ; November 30, 1893, Biłgoraj, Congress Poland — February 10, 1944 New York) was a Polish American novelist who wrote in Yiddish. He was born Yisruel Yehoyshye Zinger, the son of Pinchas Mendl Zinger, a rabbi and author of rabbinic commentaries, and Basheva Zylberman. He was the brother of author Isaac Bashevis Singer and novelist Esther Kreitman. He married Genia Kuper. His eldest son, Yasha, died of influenza before the family's emigration to America. His younger son, Joseph Singer was the translator for both his father's works and his uncle, Isaac Bashevis Singer. Joseph a painter and writer like his father married June Flaum Singer who went on to become a writer. They had four children: Sharon Salinger, Brett Singer, IJ Singer and Valerie Singer. The three daughters followed in the family business and are also published poets and novelists.
Document 11: Digitalk: Digitalk is an annual two-days technology conference, organized by the Bulgarian business newspaper Capital weekly. Digitalk provides a place for discussion between creative professionals, investors, entrepreneurs, and marketing executives on the future of the web. Speakers cover topics such as mobile marketing, online advertising, commerce, brand storytelling, and entrepreneurship. The first conference was held at the Ivan Vazov National Theatre in Sofia, Bulgaria on September 26, 2011. Its topics addressed the influence of mobile technologies on business and society. Past speakers include Matt Mullenweg, Horace Dediu, Felix Salmon, James McKelvey, Sasha Bezuhanova, and others. The 2011 conference drew more than 700 people from all over Southeastern Europe.
Document 12: The Industries of the Future (book): The Industries of the Future is a 2016 non-fiction book written by Alec Ross. The book explores the next waves of innovation in robotics, genetics, coding and big data and how they will affect our world.
Document 13: Isaac Bashevis Singer: Isaac Bashevis Singer (Yiddish: יצחק באַשעװיס זינגער‎ ; November 21, 1902 – July 24, 1991) was a Polish-born Jewish writer in Yiddish, awarded the Nobel Prize in Literature in 1978. The Polish form of his birth name was Icek Hersz Zynger. He used his mother's first name in an initial literary pseudonym, "Izaak Baszewis", which he later expanded. He was a leading figure in the Yiddish literary movement, writing and publishing only in Yiddish. He was also awarded two U.S. National Book Awards, one in Children's Literature for his memoir "A Day Of Pleasure: Stories of a Boy Growing Up in Warsaw" (1970) and one in Fiction for his collection "A Crown of Feathers and Other Stories" (1974).
Document 14: Saul Bellow: Saul Bellow (born Solomon Bellows; 10 June 1915 – 5 April 2005) was a Canadian-American writer. For his literary work, Bellow was awarded the Pulitzer Prize, the Nobel Prize for Literature, and the National Medal of Arts. He is the only writer to win the National Book Award for Fiction three times and he received the National Book Foundation's lifetime Medal for Distinguished Contribution to American Letters in 1990.
Document 15: Ramesh Srinivasan: Ramesh Srinivasan (born 1976) studies the relationship between technology, politics and society. He is an associate professor at the University of California, Los Angeles. He has been a faculty member at UCLA since 2005 in the Information Studies and Design|Media Arts departments. He is the founder of the UC-wide Digital Cultures Lab, exploring the meaning of technology worldwide as it spreads to the far reaches of our world. He is also the author of the books: “Whose Global Village? Rethinking How Technology Impacts Our World” with NYU Press, and “After the Internet” (with Adam Fish) on Polity Press to be released in December of 2017. Srinivasan earned his Ph.D. in design studies at Harvard; his master's degree in media arts and science at the Massachusetts Institute of Technology; and his bachelor's degree in industrial engineering at Stanford. He has served fellowships in MIT’s Media Laboratory in Cambridge and the MIT Media Lab Asia. He has also been a teaching fellow at the Graduate School of Design and Department of Visual and Environmental Design at Harvard. Srinivasan is a regular speaker for TEDx Talks, and makes regular media appearances on NPR, Al Jazeera, “The Young Turks,” MSNBC, and Public Radio International. His writings have been widely published by Al Jazeera English, "The Washington Post", "The Huffington Post, Quartz, and CNN."
ground_truth: Alvin Toffler