As will all movie experiences, the viewer should accept the movie and its story for what it is. Trailers and simple write-ups tend to sabotage or bias viewers and, in this case, they really hurt the film. It's too bad that so many viewers judged this movie with pre-conceived expectations. The movie is not about a man's technological breakthrough or even about a child prodigy and his supernatural experience. It's about the transition of a man becoming a father. And it does so gently and without major revelations. Back stories of broken men dealing with tragedy are resolved by the idea that connecting with each other in a very profound but entirely believable way is the spirit of the movie that should be lauded.
The movie is not without its flaws. It didn't need Kai mysteriously knowing how to fix the machine nor did it need him to visit with his dead mother. Including those parts must have pained the writer and director who overly pandered to those needing an explanation. Folks, put your phones away and watch the movie. Ultimately, however, the boy and his guardian connect as we achingly want them to.
Super photography and a supporting soundtrack make this movie a joy to have seen.