I have Bell’s “Speakable and Unspeakable in Quantum Mechanics” and surprisingly, actually understand alot of it!
He was a brilliant guy. To find the things he did and not lose his mind in the process must have been quite a challenge!
And, of course, the Aspect experiments proving most of his predictions.
You would have to be brilliant and very well educated to actually work with these kinds of things. I however am just an average Joe that finds all these mysteries really fascinating, and have read a lot about it over the years, but I actually understand very little. I keep saying to myself, “how can it be that way?”