Upscale 2K video to 8K with AI

In this very intriguing experiment, an ARRI ALEXA Classic 2K footage were undergone AI ‘treatment’ to output 8K footage by using machine learning technologies. How much Artificial Intelligence methodologies can assist us in resolution upscaling, instead of perusing after 8K sensors?

It's like English, Jim. But not as we know it.

Or SD video to HD