CNC Injection Mold Machining

How automated can injection mold tooling be? I know this is a very
general question but has technology progressed to the point that a
block of mold steel can be placed in a CNC machine and out comes
half of the mold? Certainly it must depend on the geometry of the
cavity.

I have a laser cutter and am aware of lasers now being used to cut
molds. Seems like fully automated tooling will be the way of the
future.

Randy Bachmann