An idea that I never understood. Just...what...the...hell......?
There's like a world-wide conspiracy to make people believe that the earth is round? For what motive?
I don't even?

would not even consider trying to prove it real

They belong in a psychiatric hospital.

Nothing in the story about the bravery of their attendant feeding & bathing them?

A long time ago my wife and I used to take vacations like this when we were more cash limited. We'd just take off in a direction without too much of a plan and spend a few days seeing where the road led.
One of our most enjoyable trips was just exploring the southern British Columbia coast. I hope these folks had a good time.

But we were a lot less self-absorbed about it. We didn't plan on proving(or disproving) anybody's basic worldviews. Ha, ha.

Reminds of the commercial where the
M & M 's run into Santa clause and they said, they do exist
I actually never saw a flat earther

I hope I'd make it farther than they did.