All Concepts Must Have a Representation
String languages treat the “blank space” as just another type of token, one that is given a specific meaning as a separator of strings that represent concepts. Concept, to exist, must be expressed by an arranged sequence of encoded tokens. Containers in contrast provide an internal emptiness that is not enlisted to distinguish concept from structure. The container boundary itself provides conceptual distinction. Emptiness, a contextual void, is then free to be employed as a structural tool. Concept can be implicit. Structure can be void-equivalent.
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BRICKEN, William, 2021. Iconic Arithmetic Volume III: The Structure of Imaginary And Infinite Forms. Unary press. ISBN 978-1-73248-515-0 page 
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We continue to ponder the importance of 'whitespace', that space of potential, that space long recognized by Taoist and Buddhists as 'Wu Wei'.