Another explanation for the nano-tip experiment is, when the electrons go over the tip, they approach a fraction of the speed of light. In this moment, an electron transitions to virtual photons. I might be using this diagram incorrectly, but basically:
Electrons approach the nano-tip and transition to virtual photons, but some cannot transition back to electrons because in order to "get there" some of these photons would have to exceed the speed of light. Some "break away" from their virtual pairs and are released as visible light.
Maybe this is flat wrong. Or maybe I'm describing the exact same phenomenon, just more sloppy.
This reminds me of bremsstrahlung radiation. Which if we are trying to redraw quantum mechanics as only allowable wavelengths between apparent horizons would be part of this process as well. This concept has been answering a lot of questions... and also convinces me even further we live inside a computer simulation. The interaction between two holographic membranes as a calculation.