What Are They Thinking? By Keith Teare • Issue #323 $350m for the man who lost most of $20 billion. The world has not gone mad. Read why Marc Andreessen (@pmarca) did it. Plus @ReidHoffman on AI, Josh Nicholson on Science and AI, @BrianSolis on Web3 marketing@Alexoppenheimer on valuing companies, and much more Contents Mad…