Basically here:
Dave is convinced that the Bible says the Earth if flat. Since the Bible was written by God, and since Dave's understanding of the Bible is also given by God (or so it seems), this flat Earth idea is a religious belief. Thus it is impossible to prove otherwise to Dave.
He will ignore evidence. Claim everything and anything is a lie or a conspiracy. Refuse to even go look at a sunset. Pretend that mathematics is wrong- or that he "doesn't understand." Any and every excuse, because he knows the Earth is flat. God said so.
The rest of us have been wasting our time with facts. Dave has encouraged this by pretending to be reasonable about this topic. He will "consider the evidence." But he won't . He doesn't think of himself as dishonest, but he is.
This is Chair's opinion of what Dave is doing.
I know Dave better than Chair does.
Dave believes there's good evidence for both flat earth and globe earth.
Dave is doing research on both views but is advocating for flat earth while others are advocates for globe earth so we can have a debate.
The arguments from both sides need to made and compared.
Let everyone decide for themselves which worldview makes sense.
Dave always makes arguments and rarely ever demeans those he is debating as Chair is doing in his post.
--Dave