There are tradeoffs, and in many situations machines have a clear advantage over biological organisms. In aviation and space, there are serious issues in keepi

There are tradeoffs, and in many situations machines have a clear advantage over biological organisms. In aviation and space, there are serious issues in keeping biological organisms alive due to oxygen levels, pressure changes, and G forces. A purely autonomous system would be able to be more maneuverable in more environments than any system that also needs to keep a meat bag alive. The other thing machines are great at is patience. Land mines can remain operational for decades, just waiting for their opportunity to detonate. Biological organisms have much higher passive maintenance costs.