It depends on what you mean by “new resources”. In your text, you wrote “One more researcher, or one more research grant will add little to the rate of progress. ”—and that’s what I argued against, above.
Simply put, more researchers & companies=> more longevity-influencing factors to be evaluated ⇒ higher chance to find ones that work, and work better.
I’ve been following the anti-aging field for almost 7 years: research news, overview articles, reviews etc.
I don’t know the author of OP, but I can say that the article he wrote here is as good as it gets (one of the best I’ve ever read), and, up to date. So are the recommendations he makes for further learning/immersion. I happen to have read many of the articles he cites, and they are all of very good quality.
The names he cites (A. De Grey, Sinclair, Barzilai and others) are stars in this field, mentioned in most other anti-aging blogs as well.
IMO, the kind of background this author has (not exactly working in aging research, but still within biology and familiar with research in general) is great for writing an overview like this: because it is less biased in terms of a preferred theory and approach for anti-aging—unlike (to various extent) reviews written by a star researcher in the field. Even this author has a preference (SENS) (but perhaps for a good reason, you’ll have to judge yourself).
So, the pointers given here are all great (just reddit/r/longevity alone will give you as much immersion and leads as you want).
Personally, I read/follow some of the sources he recommends, and also follow this blogger https://joshmitteldorf.scienceblog.com .