I'm using my direct experiences in making my assumption and not appealing to authority to make my decisions.
I make a challenge to you. Prove the earth is a ball with scientific based proof. Grab yourself the 10,000 challenge (I think its up to 50,000 now). Leave the negative trust for me as I must be a looney.
there's an easy way
(but very costly) to prove the earth is a 'ball'
go sign up, pay the fee and hop on SpaceX program, I think that's the name I heard in the news
you will go on a trip in a rocket spaceship and will be able to
see the earth from outer space