Sorry. Not an official chapter. This is based off a theory. This chapter is about the theory
Research found for it: according to research, it is possible to dream/hear people when in a coma
The theory states the following
Big hero 6 took place from Hiro's point of view. On the night of the explosion, Tadashi ran into the showcase hall to try to rescue Professor Callaghan. He successfully rescued the Professor and they both made it out of the showcase hall in time. Hiro had ran after Tadashi, but the explosion blasted him back. He needed to be rushed to the hospital, where he later slipped into a coma. Everything in the movie after the explosion is in Hiro's mind. The crime fighting and superpowers were in his imagination/dreams. The moments of him and his friends were him hearing his friends talking to him when they visit him. Baymax showing Hiro videos of Tadashi's tests were actually Hiro hearing Tadashi talking to him. "I'm not giving up on you" (33rd test) was Tadashi talking to his comatose brother saying that he knew Hiro would eventually wake up even if in a coma for 33 days so far.
Thoughts?