Talk:Chara/@comment-5413572-20160114175359/@comment-5413572-20160115073252

Well, both Frisk's and Chara's souls specifically embody Determination, whereas the other souls (and human souls in general) possess a great deal of Determination, but embody other virtues. This could account for the creation of SAVE points- Frisk's Determination-centric soul is powerful enough to warp spacetime, creating these as potential anchorage points. Chara may well have possessed this power as well, but when Asriel ultimately stole control of their shared body and had them killed, they lost the ability to travel back (assuming that they made previous SAVE files, of course, and that this is how SAVE points work). These SAVE points may also only be visible to Frisk and Chara (and possibly Flowey/Asriel, although equally he might only be able to see his own SAVE points, which, incidentally, we never see), as other characters pay them no mind and never draw attention to them as I recall- even when Sans references the SAVE ability in a Genocide run, he only mentions the resetting of timelines, not the SAVE points themselves. This would account for why the writings don't mention them.

Under this model, only red human souls could actually distort the timeline by themselves, and if we assume soul colors are evenly distributed (a pretty big if, but I don't think an entirely unreasonable one), then only 1/7 of the human population would have this power. Besides, each time the timeline is reset, only the one doing the resetting and some highly Determined beings retain their memories (and as seen in Flowey's post-True Pacifist dialogue, even these can be erased), so most of the population would be totally unaware of any anomaly. Then, too, the humans themselves may balance out this ability when grouped together- when Frisk is using this ability, they're the only red soul in the Underground, and Flowey can override their influence upon getting the other souls.