The original proof of the stability of Minkowski spacetime was too long for a paper, so the authors wrote a 500 page book: https://press.princeton.edu/books/har

The original proof of the stability of Minkowski spacetime was too long for a paper, so the authors wrote a 500 page book: https://press.princeton.edu/books/hardcover/9780691632551/the-global-nonlinear-stability-of-the-minkowski-space-pms-41 https://press.princeton.edu/books/hardcover/9780691632551/th...