Saying it doesn't make it so, Dave.
There are whole fields of science with multiple thousands of scientists that all depend, to one degree or another, on the fact that gravity works.
Newton's law of gravity, in addition to being very well known (as in not a secret or written in some sort of unintelligible code known only to some all powerful elite), they are also quite easily testable. They are, in fact, demonstrably true and you can prove it yourself in your own garage.
Not only that but Isaac Newton was a Christian who not only believed in a biblical worldview but accepted the bible as literally true.
So, where is the motive?
You're talking about a multinational, muti-generational, multi-century conspiracy to convince us all that the Earth isn't flat.
WHY?
Even if such a vast conspiracy where possible to maintain, which it isn't, where's the motive to do so?
Why, oh why would anyone care if we figured out that the Earth wasn't a sphere?
How is anyone profiting from the propagation of a round-earth conspiracy? Who's power is maintained by keeping the flatness of the Earth a secret?
If it's so important that people be kept in the dark about the non-spherical nature of the Earth that the secret has been maintained across the whole world for centuries, why haven't the producers of this video all had sudden a very tragic accidents and the video deleted and wiped from existence? You haven't seen any strange characters watching your house from non-descript van's across the street, have you? Have you noticed any black helicopters flying overhead on your way to work? Maybe they aren't doing traffic reports after all!
Forgive my facetiousness. Seriously, where's the motive?
Resting in Him,
Clete