Isn't it amazing how vibrating paper cones pushing air can reproduce just about any sound within the human audible range?
The concept is so simple yet so hard to believe at the same time.
Then the concept of how humans hear is surely mindblowing!
Imagine if you tried to assemble a mechanism for human hearing.....would you have used an 8-10mm circle of skin, stretched tight, attached to three miniature bones (the malleus, which is attached to the incus, which is attached to the stapes), which all move in unison to the tympanic membrane picking up vibrations in the air.
And then the bones transfer their movement to a semi-circular canal filled with fluid, and the fluid's movement moves fine hairs inside the canal which translates the mechanical action into electrical potential? (The hairs create nerve impulses which are then transferred to the brain and interpreted.)
I think the human's system of interpreting sound is much more fantastic in its function....despite the Rube Goldberg design.
Loudspeaker design is almost a simplistic challenge, in contrast.