@dannydoucette If I remember correctly, I first read about Leo Szilard in Richard Rhodes book "The Making of the Atomic Bomb".

"Activism" takes many forms. IMO well demonstrated in the movie "Hidden Figures". For many, "activism" is managing to get past the barriers to their involvement.

@level98 Absolutely, that's what I meant by "breaking barriers" in my reply, and it's so important not to forget it. Also, I think it's important for people with various dominant identities to remember that advancing culture/social/political change often requires sacrifice. Szilard is a good example, as his physics career suffered from his anti-nukes advocacy (I also enjoyed his portrayal in the Rhodes book!)