The point of the film is that the person watching the video and television in general creates a somewhat different reality for himself. More precisely, elements of this other reality first appear, then they grow into reality, and then there is a replacement of the existing reality with a new one created by man with the help of television. Cronenberg offers a continuation and development, although only ideologically, there are no images in the script. So Cronenberg says that this new reality will create a new kind of man.
It's a scary thing, and Cronenberg is good for pointing it out. Except that it's already happening, and it's infecting the brain at a rapid pace. The most annoying thing is that, first of all, one ceases to understand that there is a substitution, and stubbornly believes that this made-up reality actually exists. Naturally, all this is accompanied by hallucinations. Secondly, the type of person created is dangerous, inadequate and misinterpreting the reality that still exists. One could talk about this in forums, and they probably do.
All of this is present in the film, shown with the very same hallucinations in which everything inanimate comes to life. Everything is shown logically - any disturbances inside a person lead to death - psychically, bodily. Perhaps Cronenberg's death is a utopian image of the futility of such a person's emergence, or maybe it is simply the logical outcome of development and such an ugly transformation in this particular picture. But in any case it is very interesting and profound, although the way everything is depicted, the year 83, the special effects are not yet so serious (although in the film they are impressive), so the way everything is depicted may not allow to adequately perceive this film.
It's a cool movie. You could make an incredible tight and clever remake if someone knew how to do it...