Think of it is as mosaic, and it's hard to say that any one piece of a mosaic was necessary to building the mosaic, but to build the complete picture, you need to have all the pieces of information.
Zamislite to kao mozaik gdje je teško reći da je  jedan dio mozaika bio odgovoran za njegovu izgradnju, ali da se stvori cijela slika morate imati sve informacije.