Vot decoherence problem reshat, potom i budet wow, a to tak uge 10 let vse obeschayut
K cryptography eto konechno ne otnositsya!
BTW, pischa dlya uma - soberite zakodirovannuyu informaciyu, kotoraya vam moget kogda-nibud' ponadobitsya (lyuboj coding, e.g. rsa, md5 or whatever), kogda/esli quantum computers vyjdut, eto raskodirovat' budet raz plyunut' (pri lyuboj dline klyucha

)!