Sometimes they look blue

what mountain is blue?

Yes watch the video

If you view a mountain from far away they will start to blend with the sky

and?

Blue light is scattering out the light between you and the mountain

and how does that prove that the earth is flat?

It doesnt

It just proves you cant see infinite

Due to visibility

oh my other point

You were saying they were fading

Im saying thats because of visibility

Nothing more

Me: the thing im confused about is if the earth is flat wouldnt all the water leak off the edge?
you: who told you there is an edge?
me: so ur saying that earth is infinite?
you: who told you the earth had an edge or it is infinite?

Here are some questions you can ask yourself. Where is the plane of the eye? What is the relative angle between the surface of target and the plane of the eye? Given that angle , what is the angular separation of the points of light on that target.

Ive never been off north america. I don't know whats out there

okay viewing a mountain from far away it blends with the sky right?

Depends on that days weather conditions, the position of the sun, etc
.

https://youtu.be/8Akip2Ev_N8?t=2795

at that time in the video u can still see the mast of the ship, its not blended, it sunk slong the curvature of the earth

So you didn't watch the optics video?

Nothing about blending

Its about optics

Blending is the visibility of the day

Optics im talking about is how light and the eye work

In conjunction

Imagine extending that 60 miles

The angle will become so shallow that the eye or lens will lose its ability to resolve objects in the cone

is this entire thing about earth being flat

yeah

ok

im a round earther

same

zdoc.site_gibson-1952-the-perceived-slant-of-visual-surfaces (1).pdf

this guy thinks that you cant perceive things as round if you are far away