→experience×name×break-even_point×design_pattern×(1.4.6)_design_pattern×trial_and_error×purpose×find common pattern×shelf-viewing×syntopic_reading×rhetorical_afterimage×fast_reading×slow_reading×finding_information×building_understanding×footnote_for_4.5.2.3×(column)_naming_the_pattern×douglas_carl_engelbart×language×model×abstract×manipulate×augmentation×box×trigger×handle×(1.1.2)_modeling_and_abstraction×stack→