writes:

No, it is not unless the simulator is so realistic it is impossible to
tell the difference between the simulation and reality and such simulators
do not exist.

The simulator need only provide more information than no information, which
every simulator does. The simulator provides information specific to an
aircraft that real-world experience in a different aircraft does not.

Flying a real airplane requires a broad set of skills and knowledge which
is why in the real world the individual skills are taught in varied
environments best suited for teaching the task at hand, i.e. the cockpit of
a C172, a desk, a light twin, a 747 simulator, a real 747, to name just a few.

There is knowledge (and sometimes skill) specific to individual aircraft that
must be acquired before that aircraft can be successfully flown. The specifics
of a 747 are not learned by someone flying a C172.