Schild’s Ladder by Greg Egan
Of the eight who showed up for this discussion, all had read at least part of the book, but only four finished it. Some of the seven who had read Egan’s work before preferred Diaspora or his short fiction, but others did enjoy this book.
The book begins far in the future when an Earth scientist and several aliens decide to test a space-time theory and create a novo-vacuum. The test goes awry of course and the novo-vacuum begins to expand and take over our universe. The rest of the book is set even further in the future and involves a