Hawking had earlier speculated that the singularity at the centre of a black hole could form a bridge to a "baby universe", into which the lost information could pass; such theories have been very popular in science fiction.
Hawking sebelumnya berspekulasi bahwa singularitas di pusat lubang hitam dapat membentuk jembatan menuju "alam semesta kecil", dan informasi bisa terbang melewatinya; teori semacam ini justru populer di dunia fiksi ilmiah.