Do we need quantum-classical correspondence?

[xylai]

Now we can solve TDSE (time-dependent Schrödinger equation) to obtain the quantum results.
I wonder why lots of people still do some works on quantum-classical correspondence?

 

[Demystifier]

Can you describe the motion of planets by TDSE? No? That's why.

 

[xylai]

Can you describe the motion of planets by TDSE? No? That's why.

Yes I can't.
But quantum-classical correspondence is investigated in the micro-world.