Abstract
We use sequences of expansive maps of the interval to construct non-autonomous systems which appear to display "hyper-exponential loss of information" (defined below). A rigorous proof of this loss of information would prove that the class P of languages accepted in polynomial time is properly contained in the class PTAPE of languages accepted in polynomial space. Thus either P = NP or NP = PTAPE, where NP is the class of languages accepted by non-deterministic machines in polynomial time.

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