Yes, the earth is flat. Yes, we have all been lied to. The globe is a lie. Heliocentrism is a lie. Space travel is a lie. The implications are enormous.
Why would they lie about this? How could this lie be carried on over generations? Why would anyone be so evil to purposely deceive us?
Like it or not, the answers to all these questions are in the Bible. But the Bible also contains the answers to a more important question: now that I know someone created this place, what must I do to be saved? What is there to be saved from?