Complex sentence: Many simply collapse whitespace to a single space while preserving paragraph marks, because the whitespace is frequently either an element of writing style or introduces layout or presentation not required by the prediction and deduction methodology.
Split into simpler sentences: Many simply collapse whitespace to a single space while preserving paragraph marks. Extraneous whites space, when present is frequently either an element of writing style or introduces layout or presentation not required by the prediction/deduction methodology.