But I feel like that will just lead to more training with the same (or more) hardware with a more efficient model. Bitcoin mining didn’t slow down only because it got harder. However I don’t know enough about the training process. I assume more efficient use of the hardware would allow for larger models to be trained on the same hardware and training data?

The lamp is rendered by small electric lights, be it LEDs or LCD. CRTs are in a bit of an grey area. But you can absolutely use a monitor as a light source by itself .

Anybody tried the link yet?