The lens analogy is more around how I personally came to the idea. I’m working on other projects that require re-projection in f information so I added a lens concept to my engine to support those re-projection tasks. I then noticed that you can use the same lens approach to reframe concepts that you’re struggling to grasp.
I was struggling to understand how multi-headed attention works in transformers but I was able to get the model to reframe the concept in way that was easier for me to grok.