yeah,i am respect your thought and always appreciating of your post.obviously truth.we can our life doing happy and beautifull alots of hard work troble.just amazing post everyday showing in your blog.of course fantastic.. The tetrachromatic man can not see beyond the seemingly normal-looking light spectrum, but has the most sensitive photoreceptor of color in red and green scales, making them more sensitive to all colors for normal humans. For these people, other people are the "color blind", because most people will not be able to ease easily in the summer and green that is common in Spain. As for a tetromromatic it will be obvious. So yes, if we both see the sunset, maybe I see something you can not see, or you see something I can not see.thanks to sharing for your great post.take care yourself and best of luck of your great work..my dear friend.. @velimir