Easy? What if - to reach that edge - you had to travel a great distance ( at least several hundreds of miles, possibly well over a thousand ) across a lifeless completely-dark terrain of ice and snow at 100+ degrees below zero - where the sun literally never shines? And, that is assuming that you are somehow able to breach the protective dome somewhere along the way. ( And, there may not be any oxygen outside the dome. )
If you are going to consider Flat Earth, you must learn to think in Flat Earth terms and not Ball Earth terms.
The oceans do not fall off the edge in a completely tropical environment where you can simply approach the edge, drop an anchor, and take pictures...
And, it is very highly likely that no airplane has ever come anywhere even close to the 'edge' - enough to see it. ( Because of the protective dome. )
Research: Flat Earth
You are going to have to look at some other things in order to obtain the proof you require.
Hilarious! Seriously, do you live in the Middle Ages, and travel by donkey? We fly across Canada in 6 hours, which is about 5 thousands miles. I have done it myself! My son lives in the Arctic. He dresses for it in winter, and puts cardboard on his windows in summer to block out the 24 hour light. You know, from the sun going round the earth! NOT!
You need to come back to the 21st century. If what you say is true, then get some O2 masks, some heaters and warm clothes (seriously, I used to walk to the bus over a mile in Edmonton growing up, in -60F weather. I wore a fur coat of my grandmother's, two pairs of gloves and socks, a fur hat and a 20 foot long wool scarf I wrapped around my neck and head. I was never cold or froze any skin!)
So, get in a boat, airplane or whatever needs to be done, travel to the edge of this flat earth with proper modern support of things like O2 and electric or gas heaters, and take a picture of the edge.
The fact that there are no pictures is telling! The earth is not flat, no one is being lied to by the media, and some people on this thread are taking literalism to an extreme the Pharisees would have been shocked at! Or, insanity is really contagious!
Every morning when I get up, the sun has risen. Every night the sun sets! Does that mean I am a liar? Does that mean the sun goes around the earth? Nope! Just a euphemism, or a common saying that must be left over from the days when people thought the sun rotated around the earth.
God certainly does not lie, but the Bible reflects the people who wrote it. God might have said "sphere" and it was changed to "circle" because that is what they knew. Or the word "sphere" got lost in the middle ages. The Masoretic text we have date to the 10th century AD. Nothing like a little editing to correct a scientific issue, that was thought to be settled. And to protect God, who might not have known his creation the earth, was at the centre of the solar system, rather than being the third planet.
Try and explain the paths of the planets through the sky. They travel in strange orbits, which is why they were called "wanderers" or "planets." Learn some physics or astronomy, or, please, post a picture of the edge of the earth!
Just dying to see a place probably equivalent to the high arctic in winter! But mainly the edge! Stop subterfuging the truth, and post the pictures. It would be your ideal defence.
I had no idea there was so much utter ignorance, and people believed this kind of nonsense. And why? To defend God? He can defend himself and his creation.
But, try writing fantasy! Because this flat earth obsession is complete and utter fantasy! GoT has no edge on the fantasy in this thread!