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"The idea that we learn by interacting with our environment
is probably the first to occur to us when we think about the
nature of learning. When an infant plays, waves its arms,
or looks about, it has no explicit teacher, but it does have
a direct sensori-motor connection to its environment. Exercising
this connection produces a wealth of information about cause
and effect, about the consequences of actions, and about what
to do in order to achieve goals. Throughout our lives, such
interactions are undoubtedly a major source of knowledge about
our environment and ourselves. Whether we are learning to
drive a car or to hold a conversation, we are all acutely
aware of how our environment responds to what we do, and we
seek to influence what happens through our behavior. Learning
from interaction is a foundational idea underlying nearly
all theories of learning and intelligence."
From: Reinforcement Learning: An Introduction
Richard S. Sutton and Andrew G. Barto, MIT Press, Cambridge,
MA, 1998
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