You know, by not making the wild assumption that the suns rays are parallel and the earth is round.
Because magic is so much better. A magical force keeps the sun above the earth. The magic also makes the orbits diameter shrink and expand in basically a rate for thousands of years.
A magical force bends space and time and makes everything travel at (or rather have a magnitude) of lightspeed. All the while, it is also causing the planets to spin about like whirling tops, making the moon rotate at the exact right rate to not appear to rotate at all, and then there's that old dark matter leprechaun. The mechanism for this magic ? Nobody knows.
You know, by not making the wild assumption that the suns rays are parallel and the earth is round.
All observations and measurements show a round earth. Please provide a flat earth map.
I have. The map is a globe.
Where are you getting that everything travels at light speed from? By the way, here's ONE "magical" element (that a force bends spacetime), which explains everything, and there's the countless magical elements of a flat earth (that some magical force keeps the moon and the sun above the ground, another force that keeps them going in circular orbits, and yet another magical force that accelerates everything upwards. Some other magical forces also cause tides and other phenomena, such as celestial objects magically disappearing below the horizon, the sun lighting the earth in a ridiculous way, the apparently flat moon looking like a sphere, being lit like a sphere, experiencing librations and not look squashed as it gets further away, the sun and the moon not appearing to accelerate as they get closer to being at the zenith, the southern circumpolar stars, which I will admit are a bit explained by your hypothesis, and... satellites???). Which do you prefer?