Why do so many retards still think the earth is flat ?

How far above the ground is the Sun on a flat Earth? When you try to calculate that using real life observations we quickly find out that it can't be close nor far away if you're using a flat plane.
The only way to make it work with our observations is to make the Earth into a sphere and place the Sun far away. There is no other way.

Antarctic midnight Sun is impossible if the Sun is circling above a flat plane since the Sun will only be visible to the North of the observer but if you use a sphere with a Sun that's far away it fits perfectly with real life observations.

Your spherical example also uses a flat earth, you need to show this in 3D.

>Who ultimately benefits from convincing the people of the world that the earth is spherical and not flat, and how?

Those who benefit from perpetuating this myth. A spherical earth has a finite amount of land with finite resources and no escape unless you go "up" (which conveniently is something that only space "agencies" can do.

>Why does the entire world not see the sun and moon simultaneously?

Perspective, everything merges into the vanishing point of the horizon. The sun and moon will both move far enough away to merge with the horizon so we cannot see it.

>Why do solar eclipses happen?

We don't know what planets actually are as we are not able to directly observe and test them. You'd think they'd have film a solar eclipse on close up by now at least.

>Why is there a horizon line?

Perspective makes things further away smaller towards a central point which when far away enough becomes the horizon. Potentially the plane is infinite, which is why the earth appears to be at least round which is easy to confuse as spherical curvature. The roundness, or circular nature makes sense on an infinite plane because an infinite plane will have infinite directions as a circle does.

>Why is the coriolis effect an observable phenomenon

This effect assumes that if the earth wasn't rotating, it wouldn't happen. However this hasn't been proven, and how can you prove it when every experiment you do will be done on a supposedly rotating earth? Science doesn't work that way.

>why do hurricanes spin counterclockwise north of the equator and clockwise south of it?

So if a hurricane went from North America to South America, would it be spinning in the opposite direction?

You can scream shill, globe head or whatever all day long but as long as you have no explanation for these phenomena then you're a dumb dumb and I'm not trying to be a jerk, it's just the truth.
You can't ignore real life observations and pretend that your model works. Make a working model and SHOW that it works or you'll continue to be just that, a simple minded dumb dumb who mindlessly watches YouTube videos like a sheep while pretending you're enlighten. I know it sounds harsh but truth can be painful.

>Perspective, everything merges into the vanishing point of the horizon. The sun and moon will both move far enough away to merge with the horizon so we cannot see it.

Yet the Sun and Moon have a constant angular size throughout the day. You can post videos of glare from the Sun getting bigger but that's not the actual size of the Sun.

And if you don't believe that the reflection shows the true size of the Sun then I have this video for you demonstrating the same effect.

Really grasping at straws here. First you need to turn the light off as well to confirm the reflection is the same size, you also need to move further away to make sure the size of the reflection doesn't change.

i call feelsguy "wojak"

I have a low exposure picture of the same lamp that demonstrate this, I'm just gonna move the image file from my phone unto my computer, just be patient.

You can have this picture and video in the meantime.

You can see the same kind of reflection in the video and also the true size of the Sun through the welding glass. Compare them and they are the exact same size.
youtube.com/watch?v=9tWK5ou1ziE