Only limited by the speed of light, quantum teleportation could make communications nearly instantaneous.

Isn't the quantum communication (if it were possible) supposed to be actually instantaneous, not just "nearly instantaneous"?

The process works by harnessing quantum entanglement, a technique in which two particles are linked, regardless of the distance between them. Instead of particles physically traveling to deliver information, entangled particles exchange information over great distances — without physically carrying it.

As I understand it, even if the particles exchange information with each other, there is no way to send new information using entangled particles.