level sight.
Stop appealing to level sight. It just confuses you.
Deal with if the edge is visible first, and then deal with where that edge is.
Then we can discuss if it is seen with a level sight.
Again, tell us exactly why a round Earth (like the one you live on, unless you don't live on this planet) should be invisible; why if you are looking directly at this ball, you see nothing but sky.
Once more, this is not about looking straight out level. This is about looking directly at Earth.
Because if you can see Earth, that means there will be a horizon for this round Earth (unless it is placed so far away that limited visibility through the atmosphere would render it a blur) as there will be a border between where you can look towards Earth and where you cannot.
Everything available shows you are wrong.
Simple pictures of balls show you are wrong.
Basic math shows you are wrong.
The picture of the hill shows you are wrong.
Your continued avoidance of the questions show you are wrong.
You are a clinging to a strawman so you can pretend Earth isn't round.