In my humble opinion, the best way to scientifically prove some connection between Satoshi Nakamoto's and some other real people, would be to:
(a) create a dataset with his posts
(b) use linguistic ML models to identify patterns between his, and other notable cryptographers' writing.
(c) use sentiment analysis models (deep neural networks)
trained by his posts to identify emotional patterns. However, this is very difficult. Satoshi was calm and scientifically accurate. He didn't use his language to produce "noise". He wasn't arrogant. So we should face issues with this "emotional analysis approach".
(d) finally, we should use the same models to run some test datasets of posts collected by other scientists' posts.
<~>
Ok, sounds like you have some reasons to believe that.
What's funny is that Snowden lived in Japan from 2009 till 2011
[1].
Satoshi Nakamoto is clearly a Japanese name.
But, of course, the first Bitcoin block was mined in Jan 3rd, 2009, so the timeline doesn't really explain this.
As I said, we all speculate here. In my opinion, there is no reason to speculate, but I find it a natural human behaviour to want to find out who Satoshi is. It's our curiousity that leads us there.
[1]
https://www.japantimes.co.jp/news/2016/06/04/national/nsa-whistleblower-snowden-says-u-s-government-carrying-out-mass-surveillance-in-japan/