Ayn Rand Author of Objectivist, Robert Heinlein, Author of Tunnel in the Sky, and Werner Earlich Creator if “EST” all had the Delta Force worldview.

Pay attention to What IS. Focus on est. Make reality your guide. Make the facts give you your marching orders. Respond to how things are.

Lucretius wrote De Rerum Natura along those lines.

Dalton and Mendeleev worked along those lines.

Trump is a reality-oriented person. He and grew up just across the Triborough Bridge from each other.