Talk:Reading Steiner/@comment-45109652-20200320234118/@comment-4558252-20200326164609

>Okabe (from 2025) (if Luka hadn't send the nostalgia drive) sends it and Okabe (from 2010) receives it and also it takes some time for Daru to build a time machine. What you are talking about here is a matter of perspective. It does not prove that multiple world lines are active at the same time.

Just for explanation, let's suppose that Okabe did send the video D-Mail. What would happen at that time? Well, at that time, the world line would shift from one where Okabe didn't receive the video in 2010 to one where he does.

But nothing else happens; except for that event, the past remains exactly the same, and therefore, Reading Steiner does not activate. Why? Because by August 21st, 2010 Okabe had already forgotten about receiving the video at all, and the Suzuha at that time didn't know about it in the first place.

We need a Suzuha who knows about the video D-Mail and Operation Skuld to travel to the past first before moving the world line to Steins Gate.

Now, to make it clearer, I'll do the following:

First world line
 * July 28, 2010. Present Okabe finds Kurisu lying in a pool of blood; Okabe from August 21 fails to save Kurisu and returns to his present.
 * August 21, 2010. Okabe gives up.
 * 2025. Okabe records the video for Operation Skuld and sends it to July 28, 2010. [World line shift occurs]

Second world line As you see, "second world line" became active just after sending the video D-Mail. But there weren't any significant changes, which in turn means Reading Steiner didn't activate.
 * July 28, 2010. Present Okabe receives a strange video, and later finds Kurisu lying in a pool of blood; Okabe from August 21 fails to save Kurisu and returns to his present.
 * August 21, 2010. Okabe gives up.
 * 2025. [No significant changes made to the past; hence, Okabe does not experience Reading Steiner and everyone's memories remain intact]
 * 2036. A Suzuha who knows of Operation Skuld travels to the past.