Since TeX reads an entire paragraph before it makes any decisions about line breaks, the computer's memory capacity might ^^{capacity exceeded} be exceeded if you are typesetting the works of some ^^{Joyce, James} ^{philosopher} or modernistic novelist who writes 200-line paragraphs. Suggest a way to cope with such authors.
\answer Assuming that the author is deceased and/or set in his or her ways, the remedy is to insert `|{\parfillskip=0pt\par\parskip=0pt\noindent}|` in random places, after each 50 lines or so of text.