Paul Elliott’s review published on Letterboxd:
Nominated for Best Animated Short Film at the 87th Academy Awards, World of Tomorrow finds American independent animator Don Hertzfeldt exploring humanity's imperfection in perpetually feeling unfulfilled. On the surface, the animation looks relatively rudimentary with a style that encompasses stick figures as it accounts a little girl becoming transmitted on a kaleidoscopic excursion into her distant future. Her adventure is escorted by a third-generation clone of herself after it becomes activated after she excitedly mashes a sequence of buttons on a computer console. It's here that the animation begins to routinely incorporate some exciting techniques to help depict other worlds and distinct regions of space in a dark satire of human misery. Hertzfeldt makes some lighthearted yet honest observations on personal responsibility while exploring an assortment of adverse feelings which arise from not being satisfied with the here and now.