The way Lynch portrayed the foldspace sequence certainly leaves one with the impression that the navigator is doing all the legwork (so to speak--no fetus pun intended) but I think it's ambiguous to interpret it as merely the Navigator's spice trance-induced perception of what will/is happening.
Oddly enough, IMO the same sequence in the Sci-fi mini manages to make it look even more like the navigator is doing the space folding itself. The really interesting thing for me is that this scene isn't in the book at all and yet both adaptations choose to depict it in a very similar way.
As for how Dune could have been discovered before the use of spice; leaving aside the thinking machine aspect, it might be worth remembering just how far in the future this world is. I forget the exact date, but IIRC the appendix says the Butlarian Jihad occurs sometime around 12-13,000 A.D.
Over ten millennia is plenty of time for humanity to spread out--at relativistic speed--the two or three hundred light years to Alpha Carinae.
Could be even longer. Dune is set in 10,191 A.G with the letters denoting After Guild. That is 10,191 after the formation of the Spacing Guilding and we don't know when it was founded.
Read my post again. I wasn't talking about when the book takes place.
Also, we do know roughly how much time passed between "now" and the formation of the Guild
So that puts the formation of the Guild around 11,000 years after we start travelling into deep space, which (assuming that counts unmanned probes) is around 13,000 A.D. So incidentally, if Dune starts in 10,191 A.G., that puts it at around the early 24th millennium on the Gregorian calender.
As for how Dune could have been discovered before the use of spice; leaving aside the thinking machine aspect, it might be worth remembering just how far in the future this world is. I forget the exact date, but IIRC the appendix says the Butlarian Jihad occurs sometime around 12-13,000 A.D.
Leto's other memories showed Arrakis before it had become colonized by the sandtrout and sandworms so the arrival of humans there preceded Arrakis eventually becoming a desert world under the influence of the sandtrout.
Were those other memories from his human ancestry, or from the sandtrout themselves? I'd always assumed it was the latter. It does raise an interesting question though: are the sandworms the only non-Earth derived lifeforms known in the Dune universe (I can't think of any others), or were they somehow created and put there by humans?
Those memories were from his human ancestry. And were the worms really even alien? I always thought they were organisms from Earth who had diverged evolutionary after being introduced into the novel conditions on a new planet.
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