1 hour ago · Tech · 0 comments

About three years ago, someone asked me why, with my physics undergrad background and a PhD in economics, I had decided to become a professional blogger. I told him that blogging seemed like the highest-leverage thing I could do, in terms of actually having an impact on the world. I didn’t mean that bloggers literally rule the world, of course — this isn’t Ender’s Game. Nor do I have any illusions that I’ll be able to have as much influence as a top politician like Donald Trump, a top entrepreneur like Elon Musk, and so on. But in terms of what I could personally accomplish, it seemed like a no-brainer — being an opinion writer has probably allowed me to change the world much more than being an academic or an engineer or a financier or a consultant would have. Why? Because blogging has allowed me to inject ideas into the discourse with unparalleled speed, breadth, and access. A researcher goes deep into a few topics; a blogger can quickly hit the main points of many topics. This…

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