Simplicity is the property, condition, or quality of being simple or un-combined. It often denotes beauty, purity or clarity. Simple things are usually easier to explain and understand than complicated ones.
The opposite of simplicity is complexity. Simplicity can mean freedom from hardship, effort or confusion. It may also refer to a simple living lifestyle.
According to Occam’s razor, all other things being equal, the simplest theory is the most likely to be true ? hence the importance of the concept of simplicity in epistemology. According to Thomas Aquinas, God is infinitely simple.
In MCS cognition theory, simplicity is the property of a domain which requires very little information to be exhaustively described. This is the contrary of complexity.
Members of the Religious Society of Friends (Quakers) practice the Testimony of Simplicity, which is the simplifying of one’s life in order to focus on things that are most important and disregard or avoid things that are least important.
Simplicity in the philosophy of science Simplicity is a meta-scientific criterion by which to evaluate competing theories. See also Occam’s Razor and references.