This doesn&#x27;t make much sense to me. Bridges, roads, sewers, pipes, etc are still around because the problems they solve haven&#x27;t changed, and in the thousands of years we&#x27;ve been building bridges, we&#x27;re only seeing the ones that survived, and completely missing the ones that crumbled. It seems like survivorship bias.<p>Software is evolving because we have new problems to solve. I&#x27;d point out that Unix is 50+ years old and still going strong and used daily by millions of people.<p>I don&#x27;t get where the assumption that these are timeless structures comes from - the New York City Subway system is falling apart and in need of continual maintenance. Roads constantly fall apart and need to be re-surfaced - it&#x27;s not like we use incredibly elegant long term materials, we use blacktop because it&#x27;s cheap <i>now</i>. Bridges and tunnels are being maintained all the time.