alt Hacker NewsYou're right that these were not the only people working on the set of problems that lead to QM. Lots of people were thinking about the same problems at the same period of time. And lots more added to it later.
But what key concept underlying how we now think about QM doesn't go back to this list of people? OK, add Richard Feynman if you want to include the second breakthrough to QED.
Ideas that look like conceptual breakthroughs can usually be traced back to small numbers of people. Ideas that look like progress usually trace back to much larger groups.
> What key concept underlying how we now think about QM doesn’t go back to this list of people?
Off the top of my head: quarks, and therefore the existence of the colour charge quantum number; and the Higgs field.
All of the people in the list were also building on prior research by the likes of James Clerk Maxwell and Ludwig Boltzmann. Einstein himself said “I stand on the shoulders of Maxwell.”
There are other obvious candidates for inclusion like Henri Poincaré, Hendrik Lorentz, Satyendra Nath Bose…