
Ok, this seems to be the image that crops up a lot when FE's are asked about the shape or structure of their ice wall and flat Earth in general. I know there's no accepted one, but that doesn't matter, because there has to be a shape similar to this in Flat Earth, and what i'm about to discuss means that only a sphere will work with the accepted facts, it doesn't matter how much meddling you do to your "Map".
Ok: Flight times to specific destinations.

Let's say we're taking a flight from London Gatwick, to JFK In New York, USA.
I've done this flight, and it takes about 6 hours consistetly.
Ok, now let's fly from New York to San Francisco.
I've done this too, it takes about 5 and a half hours.
According to basic Mathematics, (And unfortunately I'm going to have to assume Maths is not in on this conspiracy) using Pythagoras' theorem:
6 Squared is 36, and 5.5 Squared is 30.25, added together = 66.25.
The Square root of which should determine the hypotenuse and therefore rough flight time of Gatwick to San Francisco, 8.14.
Now, i've also flown from Gatwick on a nonstop flight to San Francisco... and do you know how long it took? 14 hours.
Now, If I can get there in 8, and Flat Earth knows this, how come in reality the quickest you can do it in in a commercial plane, is about 14 hours, 6 more than your reality takes it to be.
Why is this? And don't bullshit me saying prove it, or pick apart my sentence structure, answer the question: How is it possible.
And take into account this works the same for flights from South America to Australia, which according to that map, estimates to be about 40 hours, and it definitely does not take that long. No direct commercial flight takes more than 24 hours.
Flat Earth cannot account for this.
I must conclude the Earth is a sphere for this global truth to hold.
And no, not every single plane in the world is rigged up with gas devices that knock out pilots and passengers and detours them around to make it look like it takes a lot less time.