Can there be too much knowledge?

Ockham's razor: says that we do not need a complex understanding of something if a less complex understanding exists. In Art and Philosophy we talked about never fully understanding everything because humans do not have the capacity for infinite knowledge. There is a point where you should stop trying to learn about a particular object. If you examine a poem, for example, you can start by interpreting the meaning. You can also analyze the author that wrote it and what time period it was from to see what kind of background it had. If you research what computer the author wrote it on, or what ink he used to write it, and then researched who made the computers or ink, your getting away from the subject matter. The subject matter then starts to lose substance because it looks minuscule in comparison to everything else. The string theory states that everything is somehow connected, which i believe is true. You could go on forever researching things related to that poem, but even though the things are connected to it, they aren't very useful to know if you just wanted to find the meaning of the poem. I guess my point is that there will always be knowledge out there to learn. It is up to the person seeking the knowledge to decide where to draw the line.
Question: what do you think about the string theory?