My apologies. I misunderstood your comment in my first reply to this thread. I now see you're saying biology is vastly more complex and difficult than mechanica

My apologies. I misunderstood your comment in my first reply to this thread. I now see you're saying biology is vastly more complex and difficult than mechanical engineering. I misinterpreted that before. I agree. Mechanical engineering often doesn't have to contend with systems that are as complex and ill behaved as biological systems. Tipping points, chaos, etc can arise in simple mechanical systems but they're usually pretty easily avoided. So, I'm sorry. And I think you're right.