If you don't delve into the so-called interactivity and intertwining in detail, this letter is actually quite short.
It matches Qiao Ze's style.
Yes, Roth Dugan merely skimmed a few descriptions of these two mathematical properties and directly skipped the lengthy parts.
Ha...
Something brand-new again. There were even symbols he had never encountered before, such as ⋈, ⇄, ⊙...
Of course, there were also symbols he had seen before but clearly represented different meanings here, like the ⊗ from tensor products, which symbolized "intertwining" here. He noticed this because the two sentences he skimmed through had explanations for this symbol.
Roth Dugan raised his head and looked toward Edward Witten. Their gazes met, and Roth Dugan suddenly felt a wave of melancholy.
At his age, he should be able to enjoy life...
Why did he still have to wrestle with something brand-new like this?
But then he thought about how Edward Witten was even older than he was...
