I've been thinking about how to respond to this statement for sometime now. I hear it often, sometimes jokingly, but more than not a real fear that teachers will become obsolete is a hidden wall in progressive educational thought and if we're not careful it will lead to denying children access to technology.
To those who make this statement, I came across my counter argument in a quote by Sir Ken Robinson.
"They saw in me something I did not see in myself."
An algorithm can not do that. An algorithm can not interpret the look on a child's face when a teacher recognizes their talent. A personalized curriculum, like Kahn Academy, knows where you should go next in your learning progression, but it can not tell when to push you or when to back off and lend a consoling word. It is personalized not personal.
We need to recognize that technology provides the tools to give us as teachers more time and information to provide the "personal" to the students.