That's
not the Zetetic method. Please read the material.
Also, those sinking ship observations have been studied and debunked -
https://wiki.tfes.org/Sinking_Ship_EffectThe effect is not consistent and and tends to change constantly. There are plenty of examples of this, some in the above link
Bobby Shafto, who came to our forum as a Round Earther (and presumably still is), was interested in this in apparent honesty (more than most people who have come here) and has looked at the material and concluded that the sinking ship effect is not consistently reproducible, and he has also concluded that the sinking doesn't even match the RE curvature.
Video description:
"These are stills from the last 23 panning videos captured by Pablosdog from UCSB Campus Point and sweeping across the panorama from Santa Barbara's Mesa Lane to Point Mugu. This is of oil rig Platform Henry at a distance of 16.88 miles in the foreground with the hills of Ventura County at 50-55 miles and the Santa Monica mountains at 70+ miles in the background.
Details:
Camera location: varies slightly. Within 50 ft north/south of 34°24'32"N 119°50'32"W
Camera height: approximately 45 ft with tripod.
Platform Henry: 34°19'59"N 119°33'42"W
Ventura County "ridge" in background aligned with Henry: 34°09'35"N 118°55'46"W
(see / @pablosdog2808 for more information)
None of these depict the earth as one might expect if it is a globe with radius of 3959 miles without the optical effects of an atmosphere under varying conditions."