I'm going to use the room shoji to explain the Perth theory.

Take a picture of the shoji with a little specialised composition.

This is a photo taken by tweaking the angle so that the disappearance point of the window shoji is reflected.

The disappearance point comes out when you take it with a special composition like this picture, but it's not a general composition, so some people may not know how to take it.

This is the location of the iPad that took the picture. Unless you can get the iPad this close to the shoji, the disappearance point of Perth will not be shown in the picture.

Both vanishing points and Perth are usually unfamiliar words. Because I didn't take a picture of the shoji with a composition that was so close.

Both the vanishing point and the Perth exist in our lives. But it is rare to be conscious. For example, when driving on the road, if you go through the tunnel, you will face the vanishing point. However, there are rare cases where it is conscious of vanishing points.

The story of the vanishing point described on page 4/7 of Chapter 3 of "The Answer to the Golf Swing" makes it very easy to understand when you get on a car passing through this tunnel.

When we go through the tunnel, we always look at vanishing points. Rather, the driver may be running towards the vanishing point. However, the vanishing point exists not only in front of the car, but also in the opposite direction.

As you drive through a straight tunnel, a vanishing point appears in front and back of the tunnel. (Like this tunnel) There are always two vanishing points, the front side and the rear side.

In other words, there is a disappearance point in this picture of shoji, so even if you look back 180 degrees and look at the shoji on the other side, there should be another disappearance point.

〈↓Let’s find it in the picture below!〉