Mike Lewis founded When to Jump after quitting his job at a pristine investment firm, to pursue his dream of becoming a professional squash player. He has curated a community of like-minded people who have done the same, to share their stories and inspire others to take the jump.

Isaac Asimov, world maestro of science fiction, was born in Russia near Smolensk in 1920 and was brought to the United States by his parents three years later. He grew up in Brooklyn where he went to grammar school and at the age of eight he gained his citizen papers. A remarkable memory helped him finish high school before he was sixteen. He then went on to Columbia University and resolved to become a chemist rather than follow the medical career his father had in mind for him.

He graduated in chemistry and after a short spell in the Army he gained his doctorate in 1949 and qualified as an instructor in biochemistry at Boston University School of Medicine where he became Associate Professor in 1955, doing research in nucleic acid. Increasingly, however, the pressures of chemical research conflicted with his aspirations in the literary field, and in 1958 he retired to full-time authorship while retaining his connection with the University. Asimov's fantastic career as a science fiction writer began in 1939 with the appearance of a short story, `Marooned Off Vesta', in Amazing Stories.

Thereafter he became a regular contributor to the leading SF magazines of the day including Astounding, Astonishing Stories, Super Science Stories and Galaxy. He won the Hugo Award four times and the Nebula Award once. With nearly five hundred books to his credit and several hundred articles, Asimov's output was prolific by any standards.

Apart from his many world-famous science fiction works, Asimov also wrote highly successful detective mystery stories, a four-volume History of North America, a two-volume Guide to the Bible, a biographical dictionary, encyclopaedias, textbooks and an impressive list of books on many aspects of science, as well as two volumes of autobiography. Isaac Asimov died in 1992 at the age of 72.

Henry Kuttner was born in Los Angeles, in 1915. As a young man he worked for the literary agency of his uncle, Laurence D'Orsay, before selling his first story, 'The Graveyard Rats', to Weird Tales in early 1936. In 1940 Kuttner married fellow writer C. L. Moore, whom he met through the 'Lovecraft Circle'", a group of writers and fans who corresponded with H. P. Lovecraft.

During the Second World War, they were regular contributors to John W. Campbell's Astounding Science-Fiction, and collaborated for most of the 40's and 50's, publishing primarily under the pseudonyms Lewis Padgett and Lawrence O'Donnell. In 1950 he began studying at the University of Southern California, graduating in 1954. He was working towards his masters degree but died of a heart attack in 1958, before it was completed.

Robert Sheckley (1928-2005) was an American science-fiction writer whose utterly original work is noted for its merging of quick wit, philosophical musing and dark satire. His many story collections and novels include Untouched By Human Hands (1954) and Dimension of Miracles (1968). In 2001, he was made Author Emeritus by the Science Fiction and Fantasy Writers of America.