Futurists
Terence McKenna (1946 – 2000) was an American ethnobotanist, mystic, psychonaut, lecturer, author, and an advocate for the responsible use of naturally occurring psychedelic plants.

Futurologists…
Hugo de Garis (born 1947, Sydney, Australia) is a retired researcher in the sub- field of artificial intelligence (AI) known as evolvable hardware.
Erich Jantsch was an Austrian-born American astrophysicist, engineer, educator, author, consultant and futurist, especially known for his work in the social systems design movement in Europe in the 1970s.
Neal Stephenson is an American writer known for his works of speculative fiction. His novels have been categorized as science fiction, historical fiction, cyberpunk, postcyberpunk, and baroque.
Douglas Engelbart was an American engineer and inventor, and an early computer and Internet pioneer.
Bertrand de Jouvenel des Ursins (31 October 1903 – 1 March 1987) was a French philosopher, political economist, and futurist.
Robin Dale Hanson is an associate professor of economics at George Mason University and a research associate at the Future of Humanity Institute of Oxford University.
Andrey Vitalievich Korotayev is a Russian anthropologist, economic historian, comparative political scientist, demographer and sociologist, with major contributions to world-systems theory, cross-cultural studies, Near Eastern history, Big History, and mathematical modelling of social and economic macrodynamics.
Hazel Henderson