The funniest part is that as long as there is one irrefutable reason why the Earth is round, then the flat Earth fallacy is wrong.
And that one irrefutable reason is what?...
Drumrolllllll.... Let's have it!
Give us your "nail in the coffin".
You mean that there is only one of the points left that hasn't been refuted? lol
Only 10 points have been given and none have been refuted.
Oh you mean the video, I gotcha...
So the very first reason in the video...
1. "All other heavenly bodies are round and there is no reason to think the earth isn't the same."
Let me try it....
"I have 2 boys and that means there is no reason to think I will ever have a girl".
It's kindergarten childsplay at best.
The very first argument is not even an argument, its a gross and negligible statement...
Here's another example....
"I drive drunk all the time and have never got into a wreck, so therefore I will never get in a wreck while driving drunk".
See, but the drunk driver forgot that there may be other drunks on the road... you follow?
So, in short, the first "proof" is "this is this way, so this must be this way."
Can you explain the logic that makes #1 in the video a fact?
Then I will personally move onto #2 in the video...
1 is a step in logical progression.
We look up into the sky and we see that everything is rounded in shape. Stars are round, planets are round, moons are round, comets are round, asteroids are round (the smaller the object, the more imperfections from being perfectly round, but they are still in a 3-dimensional shape, not even close to a disk)... even nebulae expand out into 3 dimensions. There are no objects that are even close to being disk-shaped.
(Solar systems and galaxies are the closest to a flat design, but they are combinations of multitudes of objects. And they have a perfectly good reason for their shape:
)
You are welcome to look at the universe yourself. Take a telescope and look at our neighbors in the solar system. Take a look at the hubble telescope pictures...
http://hubblesite.org/gallery/album/heritage/You having 2 boys and expecting to always have girls is a ridiculous counterargument. As any scientist, doctor, researcher, etc. would tell you, a sample size of 2 is not enough to draw a conclusion.
Now, try to realize that there are 30 billion trillion stars just in the visible universe. 3x10^22 (that's a 3 followed by 22 zeroes). That is just stars - and all of them spherical. Add in the planets orbiting each one, the moons orbiting the planets, comets, asteroids, ect. and you have an incredible number of object in the observable universe all displaying round features.
Here is a question:
Where are all the disk-shaped objects?
Now, our Sun is a star just like all the others. It has planets, moons, comets, asteroids, etc. that revolve around it just like the other stars that we have managed to get a close look at.
Here is another question for the middle of this:
Where are all the other disk-worlds that these other stars are revolving around?
Here is another question: Why is everything round?
The answer is a simple as something that the flat-Earth model cannot compensate for and so many deny it exists: gravity. Just in case you skipped this day at school: gravity causes objects to be pulled towards the center of mass of an object or group of objects. A sphere allows for the shortest distance between the center of mass and everything around it. For this reason, gravity slowly shapes all objects in the universe into spherical shapes.
So, the question you should be asking is:
If everything in the universe is round, this roundness is caused by gravity, Earth is made up of the same substances as the rest of the universe and Earth is also affected by gravity, why would a disk-shaped Earth even make sense?