The answer is in the movie. When explaining the Matrix to Neo, Morpheus says: "There are fields, endless fields, where human beings are no longer born, we are grown."
Unfortunately we can never experience the big reveal for the first time again. It was absolutely mind-blowing watching him wake up in the pod on the big theater screen for the first time. That was the coolest movie experience I've ever had.
Unfortunately I cannot forget even a second of The Matrix.
Fortunately, I don’t need to. It’s like listening to this yet again. It’s beautiful even though I know every note and can listen to the whole thing in my head any time I want: https://youtu.be/LZ48G9UziRs?si=WdHnkS5bvDNdF1wv
It also refers to a 2D array of numbers in linear algebra. This data structure is used to store the synaptic weights of an artificial neural network.
We have only bits and pieces of information but what we know for certain is that at some point in the early twenty-first century all of mankind was united in celebration. We marveled at our own magnificence as we gave birth to AI.