Principia Quantica. An annotated counterfactual Newton

The fused Principia text is a piece of historical science-fiction: it asks what it would look like if

Newton, while remaining Newton, leaned harder on his polygonal constructions and on the (already

interference-like) evidence in the Opticks (Newton’s rings; “fits of easy reflection and transmission”),

and then treated the smooth curve as an emergent approximation rather than the foundation.