The same may apply to "intelligence" --- aka AGI.
As far as I know, there is no proof that AGI can be produced or simulated by a binary logic algorithm running on a finite computer.
Hence, some people support the idea of "emergence" --- aka alchemy, aka PFM --- Pure Friggin Magic.
Say you want to see what a car is made of. You can take it apart (reduce it) into parts on the workshop floor. Now you know what it's made of.
But you have to put it back together again before you have something you can start and drive away (emergent properties)
At no point does anything magical happen:
parts x organization_of_the_parts <-> the working car
reduction <- -> emergence