I think, sadly, these fields will collapse further into a tighter in-group. Anyone outside that group will find it increasingly hard to penetrate. Talent won’t get you there anymore.
Commonly paraphrased to: The knowledge quest proceeds funeral by funeral.
Max Planck himself got to watch physics radically change multiple times, through avenues that didn't involve the old guard dying.
The issue I am having is how members of the potential in-group is identified.
That said said:
<< Talent won’t get you there anymore.
Talent might not get you to the table, but you can make your own table now if you have useful like minds.