Dr. Marcus Taylor was born in Dayton, Ohio, in 2109, the youngest of four children. From an early age, he showed a high aptitude for math and computers. He graduated high school at the age of 15, and then attended UCBerkeley, where he focused on computer science. Outside a few extended travels for work, he would remain in the Bay Area until the Collapse.

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While pursuing his doctorate, Marcus met Sakura Kishiyama, a Japanese national pursuing her degree in Chemistry. After two years of dating, they were married in a small courthouse ceremony and then settled in a large home in Berkeley. Three years later, in 2140, they would have their only child, a daughter named Melody. 

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Dr. Taylor’s life was turned upside down when his beloved mother, Eve, was diagnosed with early onset dementia at the age of 57. Her quick progression from a driven, gregarious woman into a fragile person who could no longer recognize him was one of the most painful experiences of his life, but it would also put him on the path that came to define him. As he watched his mother fade, he became obsessed with the translational applications of machine learning on human health. Not content to simply program AI doctors or diagnostic software, he wanted to find a way to restore what people had lost. This led him on a 30-year-odyssey of developing various virtual reality based therapies and diagnostic tools, to his eventual crowning achievement – a chip running an advanced algorithm of his own design that could be implanted into the brains of people who had suffered either a traumatic brain injury or a degenerative disease and restore the mental functions that they had lost. His valuable work was touted as an end to Alzheimer's, and he received the Turing Award, as well as a fortune from his many patents.

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Unfortunately for Dr. Taylor, his professional trajectory came at the expense of his personal life. When Melody was 10 years old, Marcus and Sakura divorced, and Sakura took Melody to live with her parents in Japan. Although Melody would spend summers with Marcus, as well as the last few years of high school after her mother succumbed to cancer, they were never particularly close and were completely estranged by the time she died during the Collapse. There is no evidence he ever had another close romantic relationship after his divorce. Dr. Marcus Taylor was married to his work. 

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Marcus was in Pleasant Hill, Ohio, spending the holidays with his cousin when the Collapse happened and is currently housed in the bunker located just outside of Davenport, Iowa. 

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In addition to his research in medical technologies, Marcus is also highly versed in virtual reality, and it was his idea to convert Gölge Komitesi’s virtual garden of delights into the Everreach, the virtual space that not only connects the bunker system but houses the entire sum of knowledge left from the world before the Collapse. Marcus is a man who’s always been obsessive about his work, and the Everreach is no different. It’s his crowning achievement, his greatest creation, and there’s no telling how far he’d go to protect it.