David Siegel Bernstein is a forensic data scientist who writes science fiction and other types of stories. He has been published in numerous print, podcast, and online magazines. Much of his work has been selected to appear in literary and genre anthologies (including Best of issues). His nonfiction has been published in newsletters, popular blogs, and academic journals.

He also volunteers his time promoting writing and his fellow authors. He serves on the board of directors for the Philadelphia Writers' Conference. This is a non-profit organization whose purpose is to bring writers together for instruction, counsel, fellowship, and the exchange of ideas. He also leads the Words in Progress writing group—a group dedicated to helping members to improve their writing and publishing skills.

His non-literary projects include: Re-inventing the wheel, the Sisyphus relief project, referring to myself in the third person (as THE David, lest fools confuse him with the other one).