Stitching together Reality

Quanta Magazine is a treasure, filled with insightful articles written in a way this rube can actually understand, something in concert with how Richard Feynman described the 4 easy steps needed for one to attain deep learning back in the day.  To this end, the recent article, How Space and Time Could Be a Quantum Error-Correcting Code centers on different levels of entanglement combined with the notion of space and time, two concepts analogous to analog, the tech able to cope with the vagaries of reality without issue.

In their paper conjecturing that holographic space-time and quantum error correction are one and the same, they described how even a simple code could be understood as a 2D hologram. It consists of three “qutrits” — particles that exist in any of three states — sitting at equidistant points around a circle. The entangled trio of qutrits encode one logical qutrit, corresponding to a single space-time point in the circle’s center. The code protects the point against the erasure of any of the three qutrits.

In other words ...

“It’s really entanglement which is holding the space together,” he said. “If you want to weave space-time together out of little pieces, you have to entangle them in the right way. And the right way is to build a quantum error-correcting code.”

After reading this, it seems that reality may really be Digital with Analog Override after all. :)