David Joseph Bohm FRS (December 20, 1917 – October 27, 1992) was an American scientist who has been described as one of the most significant theoretical physicists of the 20th century and who contributed innovative and unorthodox ideas to quantum theory, neuropsychology and the philosophy of mind. Bohm advanced the view that quantum physics meant that the old Cartesian model of reality – that there are two kinds of substance, the mental and the physical, that somehow interact – was too limited. To complement it, therefore, he developed a mathematical and physical theory of "implicate" and "explicate" order. He also believed that the working of the brain, at the cellular level, obeyed the mathematics of some quantum effects, and postulated that thought was distributed and non-localised in the way that quantum entities do not readily fit into our conventional model of space and time.
Bohm warned of the dangers of rampant reason and technology, advocating instead the need for genuine supportive dialogue which he claimed could broaden and unify conflicting and troublesome divisions in the social world. In this, his epistemology mirrored his ontological viewpoint. Due to his youthful Communist affiliations, Bohm was the subject of a federal government investigation in 1949, prompting him to leave the United States. He pursued his scientific career in several countries, becoming first a Brazilian and then a British citizen.
His main concern was with understand . . . more