Similar shows. Ryan Donovan and Cassidy Williams. His only guide on this journey is Al, an observer from his own time, who appears in the form of a hologram that only Sam can see and hear. Your email address will not be published. Replicate What is Replicate? PDF Abstract. Assistant Principal Griffin. Unfortunately this leaves us with some vague references to quantum concepts, paired with some wild and inaccurate speculation, which in my opinion does not do the field justice. Description Default.