Like a moment that seemed insignificant and unimportant at the time, but looking back was in fact a pivotal moment in pushing you towards radicalization.
For me probably being introduced to Guitar Hero at my friend's house in like summer 2007. At the time it was just another day, but looking back I ended up falling in love with those games, I ended up being introduced to The Ramones and even more importantly the Dead Kennedys through them, which caused me to get into punk music and resulted in me adopting very critical attitudes towards larger American society, attitudes which later grew into anarchism and then Marxism
When I was 5 my mom took me to a Russian-Jewish family's apartment (right off the boat, refugees of rising antisemitism in the collapsing USSR) so they could start teaching me Russian. My mom doesn't speak it, but at that time she wasnt thoroughly alienated and wasn't ready to fully abandon our ancestors (I guess), thank god. Years later this family started talking to me about how Gorbachev fucked everything up and they hate him.
Being close with some of the cold war's victims made me highly skeptical of American hegemony, even if I didn't have a coherent critique. Fortunately, I did find the Communist Manifesto in my school library and was willing to read it because I knew Soviets. Still, it's taken decades to understand the world around me. I'm still working on it.
I bought Capital today.