if they met someone with knowledge they wouldnt be able to answer anything. i think they purposely go in to try and flabergast people with there idiotic "reasoning" and there like... what! what are you on about, the people are so intelligent that its like looking at an under developed chimpanzee
It is fairly safe to say that every astronomer since Aristarchus of Samos[1] has shown that the all current flat earth models are quite impossible.
The distances to and the motions of the sun and moon are all that is needed for that.
[1] Aristarchus of Samos, (born c. 310 bce—died c. 230 bce), Greek astronomer who maintained that Earth rotates on its axis and revolves around the Sun.
What kind of telescope did he have?
Only mark I Greek eyeballs aided by a quadrant and a good brain! Here is a brief potted version of some of his work.
They knew that the sun and moon were a great distance away because neither change in angular size from rising to setting.
And they knew that the sun was further away than the moon because the moon came between the sun at the time of a solar eclipse.
In about 270 BC he estimated the distance to the moon from a solar eclipse and his figure is in good agreement with the modern figure.
Then Aristarchus went a step further and saw from the angles of the sun and moon when the moon was half illuminated that the moon was much further away than the moon.
From both of these measurements and knowing that the angular size of the sun was about 1/720 of a circle he deduced that the sun had to be much larger than the earth.
So he considered in more logical for the smaller earth (and planets) to orbit the sun than the other way around.
Others of his day, however, argued quite reasonably that if the earth did orbit the sun then the "fixed stars" would be observed to move and they did not appear to move throughout the year.
So Aristarchus's Heliocentric Solar System was discarded for some 1800 years.
And the reason that no parallax could be observed at the time was not that Aristarchus was wrong but because at the time no one could conceive that the "fixed stars" could be so far away - over 4 light years.