There has been sound mathematical evidence that Earth is a globe since ancient Greece
This is a misunderstanding. Math doesn't provide evidence. Math is merely a language for description. It's like you're saying english provides evidence for earth being a globe.
The mathematical formulas and measurements are still there,
Formulas, sure! Measurements? No.
What measurements did you have in mind and think were relevant to the shape of the entire world?
Not everything is a conspiracy, friend.
True. Humanity requires no conspiracy to be constantly stupid and wrong as it historically always is.
This is a misunderstanding. Math doesn't provide evidence. Math is merely a language for description. It's like you're saying english provides evidence for earth being a globe.
Formulas, sure! Measurements? No.
What measurements did you have in mind and think were relevant to the shape of the entire world?
True. Humanity requires no conspiracy to be constantly stupid and wrong as it historically always is.