I have been meaning to write about “internet exceptionalism” since I read a post titled “It Always Comes Down to Math” but various political and economic events intervened. The key quote summarizing the post is “but at the end of the day, regardless of what business you’re in, everything comes down to the same math problem. Revenue minus expenses must equal a positive number.” That is of course not much of an insight although it would have been useful to add something like “from some point fo...