PostConversationY Combinator has helped create more than $800 billion in market value over 20 years. Thank you to Paul, Jessica, Trevor and Robert and Happy Birthday to the fixed point combinator that changed the world.QuoteY Combinator's 20th birthday is tomorrow. Here's what was happening on March 11, 2005: paulgraham.com/ycstart.html (Yeah, I know this tweet will get hidden because it has a link in it, and that I'm supposed to put the link in a reply. But that's so stupid that I refuse to do ...