Robin Dale Hanson is an associate professor of economics at George Mason University and a former research associate at the Future of Humanity Institute of Oxford University. He is known for his work on idea futures and markets, and he was involved in the creation of the Foresight Institute's Foresight Exchange and DARPA's FutureMAP project. He invented market scoring rules like LMSR used by prediction markets such as Consensus Point, and has conducted research on signalling. He also proposed the Great Filter hypothesis.

Incel is a term closely associated with an online subculture of people who define themselves as unable to get a romantic or sexual partner despite desiring one. Originally coined as "invcel" around 1997 by a queer Canadian female student known as Alana, the spelling had shifted to "incel" by 1999, and the term later rose to prominence in the 2010s, following the influence of Elliot Rodger and Alek Minassian.