[Edit] - Needless To say - it's derece "either this or that". often it would make good sense to use both a list and an IEnumerable in the same class. No computer in the world could list all prime numbers, because by definition this would require an infinite amount of https://elliottnyejo.wikibriefing.com/2680521/5_basit_teknikleri_için_c_ienumerable_nerelerde_kullanılıyor