Blindness based on proximity.
Can someone become ‘blind’ to other options after looking/working on a problem for too long?
I believe, ‘YES’ ! Sometime I feel leaving the situation for a while and clearing your mind is a benefit to creating simple and therefore elegant solutions. Other factors and ‘things’ that happen throughout the course of daily life will alter your thoughts and direction toward other situations and solutions. This can apply to both life and technology.