I do believe the signs are an issue.
One thing that no one seems to want to acknowledge, but which I think is a very operational issue: hypoxia.
I believe that a significant proportion of people have a brain malfunction due to lack of oxygen, and are as impared as though they were drunk.
A lot of people have reported hallucinations. Why would they not think a sign is another?
I believe that judgement is one of the first things affected, so people may look at signs, but not comprehend them, or misinterpret them.
I believe that many people may have their vision impared by hypoxia witout realizing it, and they may have difficulty reading..the sign may be a blur and/or unreadable.
http://www.ncbi.nlm.nih.gov/pubmed/21478809http://www.ncbi.nlm.nih.gov/pubmed/21465911http://www.ncbi.nlm.nih.gov/pubmed/21235098http://www.ncbi.nlm.nih.gov/pubmed/10657753In conclusion, I think the signs are inadequate,
and they prove to be every single year. What was Einstein's definition of insanity?
