Thank you all for your many and varied responses. Many of you suggested using a zoom lens to prevent limiting yourself and your choices. I think this option can make good sense. However, I think I’ve discovered that this approach evades the question I was trying to ask.
Without asking the question definitively I think I was trying to suggest that we may be limited by our physiology, by our psychology, by visual habits, regarding the way we see the world most naturally. I think with no camera to my eye I may be seeing the world as if through an inherent focal length 28, 35, 50, etc. If I know that my vision is tailored by God or by serendipity to an angle of view natural to me, then, if I align that angle of view with the angle of view I have on my camera I may be more comfortable and more successful in my photography. Many suggested using the zoom lens for a period of time and then looking back over your shoulder to discover which focal length was most used for the most photos which you deemed successful. I tried this for a while with the Fuji 18-55 and found that most of my “successful” images were right around 40mm. So going forward, I’m committing to the Fuji 27 mm for an extended period of time to see what the constraint will bring to my experience.
Thanks to all for the discussion. Peter