Disclaimer: This list is speculation and only offered as an interesting perspective. I do not claim to have all the answers nor care to. If the world is a ball then fine. If it is flat then even better. We still have to live in harmony with each other and our Earth. I wish you the best in your search for Truth and meaning.
1. The Government Lies (Remember the Dress incident? With the gooey stuff?)
It's well known that the government lies, murders and steals in order to keep in control of the population. It doesn't take a rocket scientist to know that JFK's head did not explode backwards caused by a bullet coming from the book depository. So if the government would murder the president and cover it up... why wouldn't they lie about other stuff?
2. NASA has been caught manipulating images and evidence beforehttp://www.spaceref.com/news/viewpr.html?pid=30000http://www.news.com.au/technology/conspiracy-theorists-confident-photoshopped-nasa-image-is-a-cover-up/story-e6frfro0-1225936084529Once again, it doesn't take a rocket scientist to see that NASA is full of inconsistencies, lies and coverups. The moon landings look incredibly fake not to mention John Glenn's alleged orbit around the earth in 1962. This guy supposedly shot off the top of a rocket going 17,500 mph, did a mid-air 180 degree turn and successfully orbited the earth 3 and a half times in under 5 hours
Can anyone say "BULLSHITTTT" ?
3. You COULD see the Curvature with your naked eyes if the earth was a SphereIt's a common misconception that the earth is simply too big to notice any curvature below (insert figure here). This is simply not true. Using the dimensions of the earth provided by NASA, there would be an 8 inch downward curve after the first mile, 32 inches after the second and 6 feet after the 3rd mile. After 20 miles the ground should curve 266 feet downwards.
Go to a place where the horizon is visible from on top of a hill or building and you can easily see for 5-10+ miles with your naked eye. You will notice that the horizon is perfectly flat and there is not any curvature to be seen.
4. The Bible says the Earth is FlatI know a lot of you atheists, nonbelievers and children of Satan will talk shit about the Bible blah blah blah... but it does say the earth is flat and immovable and so far the Bible's explanation of the shape of the earth is way more accurate than Nasa.
Job 38:14 "As the light approaches, the earth takes shape like clay pressed beneath a seal; it is robed in brilliant colors."
Psalm 96:10: “He has fixed the earth firm, immovable ...”
Psalm 104:5: “Thou didst fix the earth on its foundation so that it never can be shaken.”
5. The Quran says the Earth is FlatSura Al-Kahf (18:47)
And (remember) the Day We shall cause the mountains to pass away (like clouds of dust), and you will see the earth as a levelled plain, and we shall gather them all together so as to leave not one of them behind.
Sura An-Naml (27:61)
Is not He (better than your gods) Who has made the earth as a fixed abode, and has placed rivers in its midst, and has placed firm mountains therein, and has set a barrier between the two seas (of salt and sweet water).Is there any ilâh (god) with Allâh? Nay, but most of them know not.
6. The Great Ice Wall is widely known and studiedAccording to wikipedia the recorded coastline of Antarctica stretches 11,165 miles and is comprised of, you guessed it, 95% Ice Walls and 5% rock.
http://en.wikipedia.org/wiki/Antarctica#Geography
7. There is not one peer-reviewed scientific study that proves the earth is a GlobeHowever, there are countless studies that show the earth is flat. For instance, all experiments measuring the surface of freestanding water show it to be perfectly level. If the earth was a ball and gravity was pulling things downward then all water should be pulled into a curved shape.
http://www.sacred-texts.com/earth/za/za05.htm8. The only evidence the Earth is a Ball is Technology and NASA (And NASA)
When presented with Flat Earth Theory for the first time, most people immediately think "well what about GPS and satellites?" For one thing, have you ever seen a satellite? A REAL SATELLITE that you know for a fact is a satellite?
Also, GPS can work using triangulation from cellphone towers. Just because some gadget or gizmo like Google earth or your cellphone says the earth is a ball does not mean it is true.
9. Big Bang and Evolution is complete nonsense (What about Grass?)
If we evolved from monkeys who evolved from other species who all started from a single cell organism over millions or billions or years... Then why do vital organs like heart, lungs and even your eyeballs and brain remain pretty much the same throughout the entire animal kingdom. Of course, there are differences in size, but for the most part they are the same thing. You would think that an eyeball with all the parts and functions that science still can't explain would improve at least a LITTLE from a monkey to a human.
The point is, things just aren't evolving...

10. And finally, the Children of Satan want you DEAD (Could be a metaphor)
Why else do you think all this deception is going on? The soulless ones, tares or incarnated demonic entities want to rule the earth because that is all they have. Why do you think they spend trillions of dollars on defense, record keeping and propaganda? They are trying to cover up your true nature as a child of God and convince you that you are a worthless eater evolved from a monkey or created by aliens so they can rule over you and steal your soul.
"Jesus said unto them, If God were your Father, ye would love me: for I proceeded forth and came from God; neither came I of myself, but he sent me. Why do ye not understand my speech? even because ye cannot hear my word. Ye are of your father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it. And because I tell you the truth, ye believe me not. Which of you convinceth me of sin? And if I say the truth, why do ye not believe me? He that is of God heareth God's words: ye therefore hear them not, because ye are not of God." John 8:39-47.

So what does this all mean? Well to me, it means that maybe we are not as smart as we think we are. It means that quite possibly technology is not going to solve all our problems, and most definitely it means that you cannot put your faith in the world or in men.