Re: If Nazi's had not been defeated space timeline reasonable?
Carl Sagan suggested that ancient Greek civilization had the potential of getting us interstellar travel sooner than we're going to get it, by thousands of years, if only scientific progress hadn't been suppressed by elitists such as Pythagoras and Plato.
Rick Sternbach did a painting of a Bussard ramjet with a dodecahedron and Greek lettering that was used in the show and included in the book. A thumbnail of it is on this page
“A life is like a garden. Perfect moments can be had, but not preserved, except in memory. LLAP” — Leonard Nimoy (1931-2015)