Hope… - Even for US

What makes Time, Ignorance, and Death inevitable? Do they have something in common? A pioneer of reducing that deadly "something" leads a short tour of where it''s found and displaced. Sayre''s tour visits some unusual places. An immigrant neighborhood builds a microgrid. A remote radio telescope solves how to detect intelligence in the universe. A quantum mystery is resolved by our own incomplete view. All are related.The tour''s destination is a moral compass and hope in tragedy.