Leonardo's Fantastical Projects and Reality Distortion

It would take approximately 540 men working 100 days to dig the R&O diversion ditch/nThe R&O projects, the circular fortress, and the draining of the swamps had one thing in common with many of Leonardo's grandest projects, and even some of his less grand ones/nLeonardo's inability to ground his fantasies in reality has generally been regarded as one of his major failings/nInnovation requires a reality distortion field