Your link is hilarious. . . measuring a THREE DIMENSIONAL PROJECTION IN TWO DIMENISIONS is self defeating, Oatka. . . Your link assumes that Jesus Christ of the Shroud lived in FLATLAND. ROTFLMAO!
Do you really think that measuring the distance from one side of this photo and the other side, which if you converted it to miles, is approximately 8000 miles, would ACTUALLY get you to the other side?
I maintain that if you started on the right side, you'd get wet when you stopped after your 8000 mile trek. . . and not be in South America. . . but somewhere in the middle of the Atlantic Ocean.
That link was just one of many and was posted as a starting point as to the claim.
You doth protest too much.