I agree, but...
I know it was your first work, and knowing that, I can say the animation was pretty good. It was smooth and worked well for what you were saying.
As far as the message, I know it was based on a poem, but it seemed the poem itself was sort of missing some major points. There's no doubt that humanity has existed for thousands of years and could have continued to exist without computers as we know them today. But with all the scientific advancement in the world, they came as a sort of logical step. You say that the big things that people use computers for today are shopping, listening to music, playing games, and chatting. Well, sure, a lot of people do that stuff, and it has a huge impact, but the real thing computers give us is advanced calculation and data storage. You sort of hinted at this when you said something like "world history" or "the whole world" is in the computer. In the movie, you said that in the old days people only used computers for their payrolls and word processing. But really, computers came about mostly because of research and infrastructure needs. For example, probably the biggest advances in modern computers came in the 50's and 60's when they were developed as missile guidance systems (kinda scary).
So anyway, I agree with what you were saying about the world being inextricably tied to computers nowadays, but I think you could have made the point more dramatic and profound if you really went into what computers are used for beyond chatting and games, but I realize it might be hard to say it poetically or pictorially, so I'll shut up now. Peace.