  Numerous definitions for complexity have been proposed over the last half
century, with little consensus achieved on how to use the term. A definition of
complexity is supplied here that is closely related to the Kolmogorov
Complexity and Shannon Entropy measures widely used as complexity measures, yet
addresses a number of concerns raised against these measures. However, the
price of doing this is to introduce context dependence into the definition of
complexity. It is argued that such context dependence is an inherent property
of complexity, and related concepts such as entropy and emergence. Scientists
are uncomfortable with such context dependence, which smacks of subjectivity,
and this is perhaps the reason why little agreement has been found on the
meaning of these terms.
