translate English to French: Thus, if we were to add the 25 years to the 70 years, we would end up preventing the modification of a common product which often - and also, so to speak, by its very nature and taking into account novelty and creativity - cannot last very long, not beyond the lifetime of a human being, for example, and therefore a ceiling of 25 years would seem reasonable.
Par conséquent, si nous additionnions 25 et 70, nous finirions par bloquer un produit moyen qui souvent, - et aussi, disons-le, de par sa nature, sa nouveauté et sa créativité - ne peut durer autant, pas au-delà de la durée de vie d' un homme, raison pour laquelle il me semble que 25 ans suffisent.