Crownie

There's been a lot of... heat over the differences between the Economist's model and 538s, particularly with regard handling of uncertainty. Do you think there is a methodological problem leading to the divergence, a philosophical difference, or just two teams forced to make choices with limited information?

Also, is there any manual pruning or curation in your model, or do you publish the output as is?

Like GPS is free for all humans on earth

GPS isn't free. It's just payed for by taxes instead of sales.