Twenty years later, Flamsteed would again obstruct scientific progress by refusing to publish his by now huge amount of accumulated data, in the form of star charts for the use of sea captains.

BBC: A Point of View: Crowd-sourcing comets

His refusal to release his valuable data, and his insistence that his work was his personal intellectual property, slowed progress on an important scientific project.

BBC: A Point of View: Crowd-sourcing comets

Without leaving his scientific footing, Simon developed a bias for optimism about man, knowledge, science, technological progress and the future.

FORBES: The Upside Of Optimism