ok

What would prove it

Go to space

Map the earth yourself

God I wish

<:CHECK6:403540120181145611> @Bannebie has been warned
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reason: Bad word usage
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I want off this damn space rock

Go do the vendee globe sailing race around Antarctica

a straight 4 mile long piece of flat straight material

Go find the south pole it's one spot not a ring

that would be undeniable

near a body of water

@jeremy how do you verify that thing is flat

we have no way to tell if something is flat or not ?

Over 4 miles.... Seems implausible

We do, but over that distance no object has been made that large

how big is the base of the great pyramid?

Untenable method

Not 4 miles wide

@The Big Gambino A string might work

And how flat is it

@Bannebie even that forms a canternary

With enough tension on the string?

yeah they have 30 pound test bouyant fishing line that weighs like 5 pounds for 4 miles worth of it

so the line floats but you would do it over the water anyways

30 pound test and the 4 miles weighs say 10 pounds tops

No, even with high tension there is still sag

is it strong enough idk

Small, but not flat

Catenary

https://en.m.wikipedia.org/wiki/Catenary

Hm..is there a formula that could be used to calculate the amount of slack depending on distance, tension and material?

@jeremy think of a doable experiment

@Bannebie yes there is

it cant be optical since we know illusions take place have to be physical

something to prove the curve physically not by what we see

K so no lasers, and not flat objects.

yes 4 mile flat object

What's left

None exists

we cant make something ?