The reason Bizarre confidently asserted that the young man Feng Yi came from an alternate dimension might be because he discovered some substance on Feng Yi's body, a substance that absolutely does not exist in this universe.
Bizarre itself is the transformation of energy. It has appeared in 3.5-dimensional probability spaces, in the fourth-dimensional Magic Crystal civilization world, and, of course, in the 3-dimensional space that is our world. Thus, Bizarre has a perception of the universe and the materials within it that is far sharper than that of ordinary people. For these reasons, it confidently concluded that the young Feng Yi is not from this world.
It must be said that Feng Yi's speculation is highly logical, so much so that even Sky Shadow hadn't considered these ideas. Perhaps it's because these matters weren't present in his subconscious concerns. However, after Feng Yi's statements, Sky Shadow agreed that it all made perfect sense.
