It is commonly believed that the resistance to antibiotics by micro-organisms is truly evolution at work, and that the recent surge in superbugs may very well be attributed to it.
When we refer to a bacteria's ability to "evolve" into resisting this antibiotic, I assume we mean that when we introduce antibiotics into the environment, a lot of bacteria die but some who by mere chance and luck didn't do so and that these lucky bacteria go on to survive and multiply, thus aiding in the creation of so-called superbugs, or rather, bacterial resistance to sophisticated drugs.
This whole situation already suggests to us, or at least to me, that there's much inherent complexity in these organisms and indeed a certain uniqueness to each.
I have, however, been troubled recently by the following question: is it truly impossible, for any kind of wholly new antibiotic which was not used before (no matter how complex), to succeed in killing off every single bacteria in any rich habitat/environment (no matter how populous)? And that there'll always be some bacteria on whom this shall not work apparently due to uniqueness in something of their structure?