I originally posted the image on the left in April 2011. Look what has happened after 2 months. Perhaps someone has rubbed against the chalk as the center portion has deteriorated while the edges have not. Nothing is static. We are constantly changing and learning. Applying yesterday's excellent solution may no longer be excellent.
Time plus experience give us a tool to plan for change. That tool is judgment. The world of architecture and the building industry is changing quickly. Like all of us, architects need to look ahead and move with the times.
Blogs I follow