

In the Zou arc, it was revealed that Raftel is located at the intersection of
the four locations written on the four road poneglyphs. But if we think about
it, we can tell the location of Raftel with just two road poneglyphs, as it
should be on the mid point of the two islands if we draw a line. Is that
correct?

I am currently on the Whole Cake Island arc, so I don't know if anything is
revealed in the later arcs.


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one-piece
Location of Raftel


I don't believe the arcs after Whole Cake Island have added anything new to
this, but there are some issues with your assumptions. This is what the wiki
on [Chapter 818](https://onepiece.fandom.com/wiki/Chapter_818) states about
the Road Poneglyphs (emphasis mine):

> The Straw Hats are astonished that this poneglyph can lead them to Laugh
> Tale, but Inuarashi backtracks, revealing that there are four Road
> Poneglyphs. He states that each poneglyph does not lead to Laugh Tale, but
> rather to an island surrounding it. **When all four islands are found and
> linked** , the way to Laugh Tale will be shown.

The way this is phrased, it might be important to visit all islands and
perform some action there to "link" them in order to reach Laugh Tale. The One
Piece world does have a lot of unusual geography and erratic weather
phenomenon, so extrapolating the location might not be a valid option.

Geometrically, we know this:

> Each Road Poneglyph gives a location, and the four locations create a
> quadrangle with Laugh Tale in the intersection of the diagonals.

While the diagonals in a parallelogram (like squares and rectangles) will
definitely intersect at their midpoints, it is possible to have quadrilateral
shapes where diagonals intersect at some different ratio (for example, a kite-
like shape or an irregular shape).

Additionally, even if the diagonals meet at their midpoint, unless you find
poneglyphs that give you two locations diagonally opposite to each other,
you'd end up going to the midpoint of an edge, which is the wrong location.


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[![enter image description
here](https://i.stack.imgur.com/ExxBF.jpg)](https://i.stack.imgur.com/ExxBF.jpg)

These 4 crosses represent the location given by each road poneglyphs, so if
you have only two road poneglyphs then you can not find intersection of those
two lines formed by four road poneglyphs, and also you have no way of knowing
which two road poneglyphs you have so you can not travel on that whole line
from one road poneglyph location to other although if you try that and are
lucky enough to have two right road poneglyphs then you may find Raftel
(Although it's actually Laugh Tale).


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