The challenge is with a POD in 1700, make the United States have a population no less than 800 million or approaching the same population levels as India and China. Bonus points if this US surpasses China or India. This also only includes current US land area or only adding Canada, so no conquest of Mexico to give it a 100 million pop boost. If you feel this is impossible, outline just how populous you believe the US could become.
Ready to see posts!