Theory

The word theory has a number of distinct meanings in different fields of knowledge

Knowledge

Knowledge is what is known....

, depending on their methodologies and the context of discussion. In common usage, people often use the word theory to signify a conjecture, an opinion, or a speculation. In this usage, a theory is not necessarily based on facts, in other words, it is not required to be consistent with true descriptions of reality.

Discussions

Discussion Features

Ask a question about 'Theory'

Start a new discussion about 'Theory'

Answer questions about 'Theory'

'Theory' discussion forum

Timeline

1912 Alfred Wegener proposes the theory of continental drift.

1915 Alfred Wegener proposes the theory of Pangea.

Encyclopedia

The word theory has a number of distinct meanings in different fields of knowledge

Knowledge

Knowledge is what is known....

, depending on their methodologies and the context of discussion.
In common usage, people often use the word theory to signify a conjecture, an opinion, or a speculation. In this usage, a theory is not necessarily based on facts, in other words, it is not required to be consistent with true descriptions of reality.