Having been through a Physics grad school (albeit not of a Caltech caliber), I can confirm that lack of (a real or false) modesty is a major red flag, and a tell-tale of a crank. Hawking does not refer to the black-hole radiation as Hawking radiation, and Feynman did not call his diagrams Feynman diagrams, at least not in public. A thorough literature review in the introduction section of any worthwhile paper is a must, unless you are Einstein, or can reference your previous relevant paper where you dealt with it.
Since EY claims to be doing math, he should be posting at least a couple of papers a year on arxiv.org (cs.DM or similar), properly referenced and formatted to conform with the prevailing standard (probably LaTeXed), and submit them for conference proceedings and/or into peer-reviewed journals. Anything less would be less than rational.
Since EY claims to be doing math, he should be posting at least a couple of papers a year on arxiv.org...
Even Greg Egan managed to copublish papers on arxiv.org :-)
ETA
Here is what John Baez thinks about Greg Egan (science fiction author):
...He's incredibly smart, and whenever I work with him I feel like I'm a slacker. We wrote a paper together on numerical simulations of quantum gravity along with my friend Dan Christensen, and not only did they do all the programming, Egan was the one who figured out a great approximation to a certain high-dimensional i
I intended Leveling Up in Rationality to communicate this:
But some people seem to have read it and heard this instead:
This failure (on my part) fits into a larger pattern of the Singularity Institute seeming too arrogant and (perhaps) being too arrogant. As one friend recently told me:
So, I have a few questions: