5 Copy edited. Moved meta information to the end in order to deemphasise it - but it really should be moved to comments.
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I'm expanding this into an answer, but credit for the idea goes to @Al Nejati.

Time Zones

If you or your date know even one person living several time zones away that you trust, call them with a video call and let them tell you and show you that it is, say, night when on your side it is day. Then turn the tables and ask the flat-earther to explain this.

Of course, flat earthers have explanations for this, for example this one: https://imgur.com/gallery/eyuUVdc

How this explains sunrise and sunset, I have not the faintest idea, but I'm sure the flat earther will have no trouble explaining. Right?

Now add the death blow:

Latitude and Seasons

If you or your date know at least one person living at a considerably different latitude, call them next on video and ask them about the angle of sunlight. Now let the flat earther explain the different angles of sunlight, and check that this explanation does not collide with the one above.

If their model isn't dead yet, check how it explains seasons. If it does, the model is certainly so convoluted, that just explaining it should make the person stop in their tracks and realize just what nonsense it is, and then you can have a laugh together.

whyWhy this works

These are easily observed everyday facts that don't require any special knowledge to see or understand. The only challenge possible to them is that someone is lying, which is why you need a trusted person on video, so you have both their word and your own eyes of a live event. To both fake the video and make a trusted person lie, both in real time, with no preparation time, requires a mind-boggling conspiracy.

Most flat earth theories can easily explain away each individual evidence of a spherical earth. But their explaning-away ideas often collide with each other. The day-and-night "explanation" above does not explain sunrise, sunset, latitude effects, solar or lunar eclipses, etc.

whatWhat you are trying to do

You are not trying to convince anyone. You show (or fake) interest in their position and ask them to explain facts that you both agree upon (the sun indeed rises and sets, etc.). If you do this rigorously, they by necessity arrive at the same conclusion, because this is the conclusion that fits all the observed facts.

whatWhat you should do instead

Don't date lunatics. ;-)

(I have expanded this into an answer, but credit for the idea goes to @Al Nejati.)

I'm expanding this into an answer, but credit for the idea goes to @Al Nejati.

Time Zones

If you or your date know even one person living several time zones away that you trust, call them with a video call and let them tell you and show you that it is, say, night when on your side it is day. Then turn the tables and ask the flat-earther to explain this.

Of course, flat earthers have explanations for this, for example this one: https://imgur.com/gallery/eyuUVdc

How this explains sunrise and sunset, I have not the faintest idea, but I'm sure the flat earther will have no trouble explaining. Right?

Now add the death blow:

Latitude and Seasons

If you or your date know at least one person living at a considerably different latitude, call them next on video and ask them about the angle of sunlight. Now let the flat earther explain the different angles of sunlight, and check that this explanation does not collide with the one above.

If their model isn't dead yet, check how it explains seasons. If it does, the model is certainly so convoluted, that just explaining it should make the person stop in their tracks and realize just what nonsense it is, and then you can have a laugh together.

why this works

These are easily observed everyday facts that don't require any special knowledge to see or understand. The only challenge possible to them is that someone is lying, which is why you need a trusted person on video, so you have both their word and your own eyes of a live event. To both fake the video and make a trusted person lie, both in real time, with no preparation time, requires a mind-boggling conspiracy.

Most flat earth theories can easily explain away each individual evidence of a spherical earth. But their explaning-away ideas often collide with each other. The day-and-night "explanation" above does not explain sunrise, sunset, latitude effects, solar or lunar eclipses, etc.

what you are trying to do

You are not trying to convince anyone. You show (or fake) interest in their position and ask them to explain facts that you both agree upon (the sun indeed rises and sets, etc.). If you do this rigorously, they by necessity arrive at the same conclusion, because this is the conclusion that fits all the observed facts.

what you should do instead

Don't date lunatics. ;-)

Time Zones

If you or your date know even one person living several time zones away that you trust, call them with a video call and let them tell you and show you that it is, say, night when on your side it is day. Then turn the tables and ask the flat-earther to explain this.

Of course, flat earthers have explanations for this, for example this one: https://imgur.com/gallery/eyuUVdc

How this explains sunrise and sunset, I have not the faintest idea, but I'm sure the flat earther will have no trouble explaining. Right?

Now add the death blow:

Latitude and Seasons

If you or your date know at least one person living at a considerably different latitude, call them next on video and ask them about the angle of sunlight. Now let the flat earther explain the different angles of sunlight, and check that this explanation does not collide with the one above.

If their model isn't dead yet, check how it explains seasons. If it does, the model is certainly so convoluted, that just explaining it should make the person stop in their tracks and realize just what nonsense it is, and then you can have a laugh together.

Why this works

These are easily observed everyday facts that don't require any special knowledge to see or understand. The only challenge possible to them is that someone is lying, which is why you need a trusted person on video, so you have both their word and your own eyes of a live event. To both fake the video and make a trusted person lie, both in real time, with no preparation time, requires a mind-boggling conspiracy.

Most flat earth theories can easily explain away each individual evidence of a spherical earth. But their explaning-away ideas often collide with each other. The day-and-night "explanation" above does not explain sunrise, sunset, latitude effects, solar or lunar eclipses, etc.

What you are trying to do

You are not trying to convince anyone. You show (or fake) interest in their position and ask them to explain facts that you both agree upon (the sun indeed rises and sets, etc.). If you do this rigorously, they by necessity arrive at the same conclusion, because this is the conclusion that fits all the observed facts.

What you should do instead

Don't date lunatics. ;-)

(I have expanded this into an answer, but credit for the idea goes to @Al Nejati.)

4 restored last sentence that was wrongfully edited out
source | link

I'm expanding this into an answer, but credit for the idea goes to @Al Nejati.

Time Zones

Time Zones

If you or your date know even one person living several time zones away that you trust, call them with a video call and let them tell you and show you that it is, say, night when on your side it is day. Then turn the tables and ask the flat-earther to explain this.

Of course, flat earthers have explanations for this, for example this one: https://imgur.com/gallery/eyuUVdc

How this explains sunrise and sunset, I have not the faintest idea, but I'm sure the flat earther will have no trouble explaining. Right?

Now add the death blow:

Latitude and Seasons

Latitude and Seasons

If you or your date know at least one person living at a considerably different latitude, call them next on video and ask them about the angle of sunlight. Now let the flat earther explain the different angles of sunlight, and check that this explanation does not collide with the one above.

If their model isn't dead yet, check how it explains seasons. If it does, the model is certainly so convoluted, that just explaining it should make the person stop in their tracks and realize just what nonsense it is, and then you can have a laugh together.

why this works

why this works

These are easily observed everyday facts that don't require any special knowledge to see or understand. The only challenge possible to them is that someone is lying, which is why you need a trusted person on video, so you have both their word and your own eyes of a live event. To both fake the video and make a trusted person lie, both in real time, with no preparation time, requires a mind-boggling conspiracy.

Most flat earth theories can easily explain away each individual evidence of a spherical earth. But their explaning-away ideas often collide with each other. The day-and-night "explanation" above does not explain sunrise, sunset, latitude effects, solar or lunar eclipses, etc.

what you are trying to do

what you are trying to do

You are not trying to convince anyone. You show (or fake) interest in their position and ask them to explain facts that you both agree upon (the sun indeed rises and sets, etc.). If you do this rigorously, they by necessity arrive at the same conclusion, because this is the conclusion that fits all the observed facts.

what you should do instead

Don't date lunatics. ;-)

I'm expanding this into an answer, but credit for the idea goes to @Al Nejati.

Time Zones

If you or your date know even one person living several time zones away that you trust, call them with a video call and let them tell you and show you that it is, say, night when on your side it is day. Then turn the tables and ask the flat-earther to explain this.

Of course, flat earthers have explanations for this, for example this one: https://imgur.com/gallery/eyuUVdc

How this explains sunrise and sunset, I have not the faintest idea, but I'm sure the flat earther will have no trouble explaining. Right?

Now add the death blow:

Latitude and Seasons

If you or your date know at least one person living at a considerably different latitude, call them next on video and ask them about the angle of sunlight. Now let the flat earther explain the different angles of sunlight, and check that this explanation does not collide with the one above.

If their model isn't dead yet, check how it explains seasons. If it does, the model is certainly so convoluted, that just explaining it should make the person stop in their tracks and realize just what nonsense it is, and then you can have a laugh together.

why this works

These are easily observed everyday facts that don't require any special knowledge to see or understand. The only challenge possible to them is that someone is lying, which is why you need a trusted person on video, so you have both their word and your own eyes of a live event. To both fake the video and make a trusted person lie, both in real time, with no preparation time, requires a mind-boggling conspiracy.

Most flat earth theories can easily explain away each individual evidence of a spherical earth. But their explaning-away ideas often collide with each other. The day-and-night "explanation" above does not explain sunrise, sunset, latitude effects, solar or lunar eclipses, etc.

what you are trying to do

You are not trying to convince anyone. You show (or fake) interest in their position and ask them to explain facts that you both agree upon (the sun indeed rises and sets, etc.). If you do this rigorously, they by necessity arrive at the same conclusion, because this is the conclusion that fits all the observed facts.

I'm expanding this into an answer, but credit for the idea goes to @Al Nejati.

Time Zones

If you or your date know even one person living several time zones away that you trust, call them with a video call and let them tell you and show you that it is, say, night when on your side it is day. Then turn the tables and ask the flat-earther to explain this.

Of course, flat earthers have explanations for this, for example this one: https://imgur.com/gallery/eyuUVdc

How this explains sunrise and sunset, I have not the faintest idea, but I'm sure the flat earther will have no trouble explaining. Right?

Now add the death blow:

Latitude and Seasons

If you or your date know at least one person living at a considerably different latitude, call them next on video and ask them about the angle of sunlight. Now let the flat earther explain the different angles of sunlight, and check that this explanation does not collide with the one above.

If their model isn't dead yet, check how it explains seasons. If it does, the model is certainly so convoluted, that just explaining it should make the person stop in their tracks and realize just what nonsense it is, and then you can have a laugh together.

why this works

These are easily observed everyday facts that don't require any special knowledge to see or understand. The only challenge possible to them is that someone is lying, which is why you need a trusted person on video, so you have both their word and your own eyes of a live event. To both fake the video and make a trusted person lie, both in real time, with no preparation time, requires a mind-boggling conspiracy.

Most flat earth theories can easily explain away each individual evidence of a spherical earth. But their explaning-away ideas often collide with each other. The day-and-night "explanation" above does not explain sunrise, sunset, latitude effects, solar or lunar eclipses, etc.

what you are trying to do

You are not trying to convince anyone. You show (or fake) interest in their position and ask them to explain facts that you both agree upon (the sun indeed rises and sets, etc.). If you do this rigorously, they by necessity arrive at the same conclusion, because this is the conclusion that fits all the observed facts.

what you should do instead

Don't date lunatics. ;-)

3 removed superfluous fluff; Be Nice applies to Flat Earthers, too
source | link

I'm expanding this into an answer, but credit for the idea goes to @Al Nejati.

Time Zones

If you or your date know even one person living several time zones away that you trust, call them with a video call and let them tell you and show you that it is, say, night when on your side it is day. Then turn the tables and ask the flat-earther to explain this.

Of course, flat earthers have explanations for this, for example this one: https://imgur.com/gallery/eyuUVdc

How this explains sunrise and sunset, I have not the faintest idea, but I'm sure the flat earther will have no trouble explaining. Right?

Now add the death blow:

Latitude and Seasons

If you or your date know at least one person living at a considerably different latitude, call them next on video and ask them about the angle of sunlight. Now let the flat earther explain the different angles of sunlight, and check that this explanation does not collide with the one above.

If their model isn't dead yet, check how it explains seasons. If it does, the model is certainly so convoluted, that just explaining it should make the person stop in their tracks and realize just what nonsense it is, and then you can have a laugh together.

why this works

These are easily observed everyday facts that don't require any special knowledge to see or understand. The only challenge possible to them is that someone is lying, which is why you need a trusted person on video, so you have both their word and your own eyes of a live event. To both fake the video and make a trusted person lie, both in real time, with no preparation time, requires a mind-boggling conspiracy.

Most flat earth theories can easily explain away each individual evidence of a spherical earth. But their explaning-away ideas often collide with each other. The day-and-night "explanation" above does not explain sunrise, sunset, latitude effects, solar or lunar eclipses, etc.

what you are trying to do

You are not trying to convince anyone. You show (or fake) interest in their position and ask them to explain facts that you both agree upon (the sun indeed rises and sets, etc.). If you do this rigorously, they by necessity arrive at the same conclusion, because this is the conclusion that fits all the observed facts.

what you should do instead

Don't date lunatics. ;-)

I'm expanding this into an answer, but credit for the idea goes to @Al Nejati.

Time Zones

If you or your date know even one person living several time zones away that you trust, call them with a video call and let them tell you and show you that it is, say, night when on your side it is day. Then turn the tables and ask the flat-earther to explain this.

Of course, flat earthers have explanations for this, for example this one: https://imgur.com/gallery/eyuUVdc

How this explains sunrise and sunset, I have not the faintest idea, but I'm sure the flat earther will have no trouble explaining. Right?

Now add the death blow:

Latitude and Seasons

If you or your date know at least one person living at a considerably different latitude, call them next on video and ask them about the angle of sunlight. Now let the flat earther explain the different angles of sunlight, and check that this explanation does not collide with the one above.

If their model isn't dead yet, check how it explains seasons. If it does, the model is certainly so convoluted, that just explaining it should make the person stop in their tracks and realize just what nonsense it is, and then you can have a laugh together.

why this works

These are easily observed everyday facts that don't require any special knowledge to see or understand. The only challenge possible to them is that someone is lying, which is why you need a trusted person on video, so you have both their word and your own eyes of a live event. To both fake the video and make a trusted person lie, both in real time, with no preparation time, requires a mind-boggling conspiracy.

Most flat earth theories can easily explain away each individual evidence of a spherical earth. But their explaning-away ideas often collide with each other. The day-and-night "explanation" above does not explain sunrise, sunset, latitude effects, solar or lunar eclipses, etc.

what you are trying to do

You are not trying to convince anyone. You show (or fake) interest in their position and ask them to explain facts that you both agree upon (the sun indeed rises and sets, etc.). If you do this rigorously, they by necessity arrive at the same conclusion, because this is the conclusion that fits all the observed facts.

what you should do instead

Don't date lunatics. ;-)

I'm expanding this into an answer, but credit for the idea goes to @Al Nejati.

Time Zones

If you or your date know even one person living several time zones away that you trust, call them with a video call and let them tell you and show you that it is, say, night when on your side it is day. Then turn the tables and ask the flat-earther to explain this.

Of course, flat earthers have explanations for this, for example this one: https://imgur.com/gallery/eyuUVdc

How this explains sunrise and sunset, I have not the faintest idea, but I'm sure the flat earther will have no trouble explaining. Right?

Now add the death blow:

Latitude and Seasons

If you or your date know at least one person living at a considerably different latitude, call them next on video and ask them about the angle of sunlight. Now let the flat earther explain the different angles of sunlight, and check that this explanation does not collide with the one above.

If their model isn't dead yet, check how it explains seasons. If it does, the model is certainly so convoluted, that just explaining it should make the person stop in their tracks and realize just what nonsense it is, and then you can have a laugh together.

why this works

These are easily observed everyday facts that don't require any special knowledge to see or understand. The only challenge possible to them is that someone is lying, which is why you need a trusted person on video, so you have both their word and your own eyes of a live event. To both fake the video and make a trusted person lie, both in real time, with no preparation time, requires a mind-boggling conspiracy.

Most flat earth theories can easily explain away each individual evidence of a spherical earth. But their explaning-away ideas often collide with each other. The day-and-night "explanation" above does not explain sunrise, sunset, latitude effects, solar or lunar eclipses, etc.

what you are trying to do

You are not trying to convince anyone. You show (or fake) interest in their position and ask them to explain facts that you both agree upon (the sun indeed rises and sets, etc.). If you do this rigorously, they by necessity arrive at the same conclusion, because this is the conclusion that fits all the observed facts.

2 added seasons as the final death blow
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1
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