I've finally finished the video.  Not sure about his assertions about the different angles, but he's incorrect about there not being two paths on a flat earth.  Flat Earthers don't believe in an ionosphere bounce (think it's most likely made up), but do think that there's a "firmament" bounce.  Not all FEs believe in a firmament, but most do.  I do, because of Sacred Scripture.  So you can easily bounce radio waves off the firmament.  So it would come down to studying the various angles, etc.  And I don't have the time, nor really the expertise to confirm or deny the different angles he alleges would be needed.  If I have time I'll try to break that down.

In the meantime, have a look at the videos on this channel here.  And, have you looked at "Mountain of Evidence" yet?

In any case, Taboo Conspiracy III ... called that because he's already had two Youtube channels deleted, and this is his third attempt.  And it's nearly impossible to find him with a search engine even putting in the exact name of his channel.  Typically, the better the channel is, the more they hide and ban it.

https://www.youtube.com/channel/UC3Z5IVoNE5cP2kka5svUEBw/videos

This also includes proof that PBS / Discover faked their "helicopter" video.

Did you watch the part on how they prove the moon is round and how they measure the size and distance?

If they lied about COVID and the jab ...
If they lied about 9/11 ...
If they lied about the h0Ɩ0cαųst ...
If they lied about JFK ...
If they lied about just about everything we know of WW2 and other history ...
If they lied about evolution ...
If they lied about geocentrism ...
If they lied about the moon landing ...

Why would they be above lying about flat earth?

PS ... this is an incredibly short list and could have gone on for pages.

Yes they lie, they lie about most everything, but that isn’t proof of anything. As you know, a round global Earth has been believed for millennia, everything you listed above is recent history with the exception of geocentrism.

Here's another good channel ... yet hard to find.

https://www.youtube.com/channel/UCz6s_ScG0PZThdwhKsUFSRw

Same person/people, different location: https://www.brighteon.com/channels/ditrh

If they lied about COVID and the jab ...
If they lied about 9/11 ...
If they lied about the h0Ɩ0cαųst ...
If they lied about JFK ...
If they lied about just about everything we know of WW2 and other history ...
If they lied about evolution ...
If they lied about geocentrism ...
If they lied about the moon landing ...

Why would they be above lying about flat earth?

PS ... this is an incredibly short list and could have gone on for pages.

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So just because Aristotle lied about the JFK assassination, therefore he's also lying about the shape of the earth? That doesn't seem to follow.
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Aristotle, De Caelo:
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Its shape must necessarily be spherical. For every portion of earth has weight until it reaches the centre, and the jostling of parts greater and smaller would bring about not a waved surface, but rather compression and convergence of part and part until the centre is reached.

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Either then the earth is spherical or it is at least naturally spherical. And it is right to call anything that which nature intends it to be, and which belongs to it, rather than that which it is by constraint and contrary to nature. The evidence of the senses further corroborates this. How else would eclipses of the moon show segments shaped as we see them? As it is, the shapes which the moon itself each month shows are of every kind straight, gibbous, and concave but in eclipses the outline is always curved: and, since it is the interposition of the earth that makes the eclipse, the form of this line will be caused by the form of the earth's surface, which is therefore spherical. Again, our observations of the stars make it evident, not only that the earth is circular, but also that it is a circle of no great size. For quite a small change of position to south or north causes a manifest alteration of the horizon. There is much change, I mean, in the stars which are overhead, and the stars seen are different, as one moves northward or southward. Indeed there are some stars seen in Egypt and in the neighborhood of Cyprus which are not seen in the northerly regions; and stars, which in the north are never beyond the range of observation, in those regions rise and set. All of which goes to show not only that the earth is circular in shape, but also that it is a sphere of no great size: for otherwise the effect of so slight a change of place would not be so quickly apparent.

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Also, those mathematicians who try to calculate the size of the earth's circuмference arrive at the figure 400,000 stades. This indicates not only that the earth's mass is spherical in shape, but also that as compared with the stars it is not of great size.

Yeti, you seem like a down to earth guy but I think you've gone too far.  Based on your posts of the last year or so, during the pandemic, you see no possibility of conspiracy ANYWHERE.  You seem to question alternative views simply because you can't figure out how people could lie and get away with it.  It's kinda short-sighted. 

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Hmm, interesting analysis, but I don't think you know me very well if you think I see no conspiracy anywhere. I'm not sure what you mean by my posts since the beginning of the "pandemic", but I absolutely have agreed with the consensus opinion on this forum (and in many other places) that the pandemic is a politically-created revolution to instill communism into the world. I likewise agree that the drugs currently being forced upon the population are not only not conducive to health, but actually they are in fact probably destructive of health, and moreover that such destruction of health is clearly of deliberate intent on the part of the powers forcing these drugs into the population.
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Just because I don't believe in aliens from outer space, or time travel, or anti-gravity technology, or mind control, or laser plasma weapons, or various other strange ideas you have discussed in other threads, doesn't mean I believe in whatever mainstream culture believe in. Quite the contrary.
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In the case of the flat earth idea, this is interesting because it is easily verifiable by the average person, without access to any advanced technology, to understand that the earth is a sphere, so much so that even the greatest philosopher of all time, Aristotle himself in the 4th century before Christ, was able to explain and prove quite simply from a few simple observations that the earth is spherical. That is why I posted his brief, compelling arguments on the subject, because it doesn't take any fancy equipment to see that the earth is spherical. So it is bizarre to me that people today should concoct bizarre and elaborate, nonsensical explanations about glass ceilings above the earth, and the moon being some sort of picture painted on some sort of glass roof over us, as if we were living in the Truman Show movie, instead of simply reading a few simple, logical ideas from such a brilliant mind as Aristotle that prove easily that we live on a sphere like so many other spheres in the universe.

If they lied about COVID and the jab ...
If they lied about 9/11 ...
If they lied about the h0Ɩ0cαųst ...
If they lied about JFK ...
If they lied about just about everything we know of WW2 and other history ...
If they lied about evolution ...
If they lied about geocentrism ...
If they lied about the moon landing ...

Why would they be above lying about flat earth?

PS ... this is an incredibly short list and could have gone on for pages.

.
And again, this is like saying you don't believe in the Pythagorean Theorem because the people teaching it now are also teaching Critical Race Theory. Umm .... are you aware that the globe earth idea, just like the Pythagorean Theorem, is a matter of ancient and universal belief, and likewise susceptible to simple proofs that everyone can see?
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Your motives in believing the earth is flat seem to have more to do with rejecting modern propaganda than with actual scientific data. But the globe earth idea has nothing to do with modern propaganda. Rather, it is one of the oldest and most universal ideas in existence, just like the Pythagorean Theorem.

Either then the earth is spherical or it is at least naturally spherical. And it is right to call anything that which nature intends it to be, and which belongs to it, rather than that which it is by constraint and contrary to nature. The evidence of the senses further corroborates this. How else would eclipses of the moon show segments shaped as we see them? As it is, the shapes which the moon itself each month shows are of every kind straight, gibbous, and concave but in eclipses the outline is always curved: and, since it is the interposition of the earth that makes the eclipse, the form of this line will be caused by the form of the earth's surface, which is therefore spherical. Again, our observations of the stars make it evident, not only that the earth is circular, but also that it is a circle of no great size. For quite a small change of position to south or north causes a manifest alteration of the horizon. There is much change, I mean, in the stars which are overhead, and the stars seen are different, as one moves northward or southward. Indeed there are some stars seen in Egypt and in the neighborhood of Cyprus which are not seen in the northerly regions; and stars, which in the north are never beyond the range of observation, in those regions rise and set. All of which goes to show not only that the earth is circular in shape, but also that it is a sphere of no great size: for otherwise the effect of so slight a change of place would not be so quickly apparent.

Aristotle presumes that the moon/stars orbit around the earth, instead of over it.  He also assumes the moon/stars are much further away (which is why he assumes the earth is small).  If one assumes the moon/stars are much, much closer to the earth that we've been told (i.e. the universe is NOT vast, NOT far, and NOT unknown), this explains why a shift from north-to-south hemisphere provides a different viewpoint of each.

Seaside resort Kalifornien, Schönberg, 10 miles north east of Kiel, Schleswig-Holstein, Germany, Baltic Sea.

Baltic Sea sunset.
5'15" sun touching horizon
7'25" sun half disappeared below horizon
10'15" sun completely disappeared below horizon