Pleomorphism, what is it?

“If Pleomorphism were correct, scientific investigation of bacteria would be an impossibility. One grasps one’s head to make sure it is still on the shoulders. The whole structure of our science threatens to collapse.” F. Loehnis, 1922
Science can and does change/evolve, old ways are replaced, theories once seen as unsurmountable are found wanting and replaced, new paradigms emerge. A revolution in biology is emerging, beware of the current climate of intransigence in science, its not healthy and certainly won’t give us the answers moving into a new scientific paradigm.