Functional contextualism is a modern philosophy of science rooted in philosophical pragmatism and contextualism. In epistemology, contextualism is the treatment of the word 'knows' as context-sensitive. ACT is developed within a pragmatic philosophy called functional contextualism. Contrastivism, like contextualism, uses semantic approaches to tackle the problem of skepticism. The view of meaning expressed by the context principle is sometimes called semantic contextualism. Contrastivism was suggested as an alternative to contextualism. An alternative to contextualism called contrastivism has been proposed by Jonathan Schaffer. As a variant of contextualism, RFT focuses on the construction of practical, scientific knowledge. Warnecke's design for the square was based on the architectural theory of contextualism. From this he has developed a very individual theory about contextualism in architecture. The essential ideas of Contextualism in architecture long preceded the term's coinage. Contextualism in epistemology is just a consequence of these garden variety shifts in meaning. Contextualism takes into account the historical and cultural context of mystical experiences. Contextualism is centered on the belief that all knowledge is "context-sensitive".