What is Atheism? What are the ramifications of holding a belief?

References:

Four horsemen of the atheist apocalypse: https://en.wikipedia.org/wiki/New_Atheism

Tim Minchin - Thank you god: https://www.youtube.com/watch?v=IZeWPScnolo

Doomer episode: https://www.post-wave.com/24-ok-doomer

Unitarian Universalism: https://www.uua.org/

Alan Watts episode: https://www.post-wave.com/episode-10-alan-watts-this-is-it

Marcus Aurelius: https://en.wikipedia.org/wiki/Marcus_Aurelius

Sam Harris episodes: https://www.post-wave.com/31-sam-harris-1

Maajid Nawaz: https://en.wikipedia.org/wiki/Maajid_Nawaz

The Atheist Experience: https://www.youtube.com/channel/UCprs0DXUS-refN1i8FkQkdg

Music - 'Dreaming of Zeno' by Trevor Villwock: https://soundcloud.com/trevor-villwock/dreaming-of-zeno