Then why didn't doesn't he start the company in a country with lower taxes? Last I checked, Russia has a significantly lower corporate tax than the US, and yet

Then why didn't doesn't he start the company in a country with lower taxes? Last I checked, Russia has a significantly lower corporate tax than the US, and yet you don't see businesses thriving there as they do in the US... "The spirit" of his letter is a naive oversimplification - the idea that "lower taxes always increase innovation" is simple to justify, but has little evidence in the real world.