FE Meme
No Curve Here: Can We Agree?
#53: A straight ocean horizon with a level red arrow proves there is "no curve here", so a ball Earth fails the obvious test.
The Meme
Calm sea-and-sky photo with a red double-headed arrow on the horizon; macro text "NO CURVE HERE" and "Can we agree on that?"
Why It Spreads
A calm beach photo with a red arrow drawn across the horizon looks like neutral documentation, especially when the caption asks "can we agree?" as if agreement settles the shape. The trick exploits scale intuition: a straight line across one phone-wide frame feels like proof that "no curve here" contradicts a ball Earth, without calculating how much drop should appear at that distance and eye height.
What It Gets Wrong
The calm sea photo with "NO CURVE HERE" and a red double-headed arrow treats one wide shot as a geodesy instrument. On a body with R ≈ 6371 km, geometric drop scales as h ≈ d²/(2R), so over roughly 3 km of visible water the bulge is only about 0.7 m, far below what a casual phone panorama resolves. Local horizons look straight at short baselines; ships hiding hull-first and logged horizon dip over longer distances are the actual tests. TestTheGlobe's No Curvature Is Visible and TestTheGlobe's Curvature Calculator walk through the observations and predictions this image skips.
The Debunk
On a sphere with R ≈ 6371 km, h ≈ d²/(2R) predicts only ~0.7 m of drop over 3 km, invisible in a typical phone panorama; that fits a straight-looking beach horizon. A red arrow drawn across one wide shot is inconsistent with a curvature test that logs eye height and distance. Use TestTheGlobe's Curvature Calculator to compare the meme's claim with a measurable prediction.
- TestTheGlobe's No Curvature Is Visible: at 3 km over water, h ≈ d²/(2R) with R ≈ 6371 km predicts about 0.7 m of geometric drop, far below what a casual wide-angle photo resolves.
- TestTheGlobe's No Curvature Is Visible page explains why local horizons look straight and which baselines actually reveal curvature through dip and hidden height.
- TestTheGlobe's No Curvature Is Visible: ships and distant skylines consistently hide bottom-first when viewed across enough water, the classic globe prediction this meme skips entirely.
- A red double-headed arrow on one calm sea photo never logs eye height, target elevation, or distance, so it cannot falsify either model.