That in order for people to understand the differences between the choices, they have to be able to understand the consequences associated with each choice, and that the consequences need to be felt in a vivid sort of way, in a very concrete way.
Perché la gente comprenda le differenze tra le varie opzioni, deve poter capire le conseguenze che ogni scelta comporta, e queste conseguenze devono poter essere percepite in modo netto e concreto.