It is true, the distance measurement may not be truly accurate. I did not bother to triangulate
the position nor at the time did I have an accurate laser measure. I could however see the whites of their eyes* and my corrected vision has me reading the 6/4 line up until age 40 and I still manage the 6/5 line with corrective lenses.


* or close enough to see the champagne glasses in their hands.
( d.r._and_quinch when will you be famous?, Tue 13 Aug 2013, 20:12, Reply)