Your point still stands but I think 100k is a vast underestimate. I suspect there's much more than 100k in Silicon Valley/SF alone (though I don't live there so

Your point still stands but I think 100k is a vast underestimate. I suspect there's much more than 100k in Silicon Valley/SF alone (though I don't live there so not sure). There's certainly tens of thousands in central London, let along across the world. Paul Graham alone (and he's hardly the only centre of attention in the startup world) has 340k followers on Twitter. I'd assume about 10m, give or take.