From Reuters:
In quantum mechanics — i.e. in the real world as we understand it today — matter can have two kinds of formerly apparently contradictory qualities.
The same applies to people.
Matter propagates as a wave but materializes (for observers) as a particle.
Similarly, people can be both free and yet enslaved, depending not only on circumstance but on the observer too....MORE
The writer's slightly dated* mini-bio:
Emanuel Derman is Head of Risk at Prisma Capital Partners and a professor at Columbia University, where he directs their program in financial engineering. He is the author of My Life As A Quant, one of Business Week's top ten books of the year, in which he introduced the quant world to a wide audience. His latest book, due in October from Free Press, is Models.Behaving.Badly: Why Confusing Illusion with Reality Can Lead to Disasters,On Wall Street and in Life.
*See: