The Limit of Human Knowledge

For all of you development- and advancement- freaks this may be quite sad, but the truth is:
Humanity's knowledge will not continue to develop more and more until the end of time. (Not even if the human race never dies out.)

This may seem impossible in the information age - accessing knowledge and information is easier than ever. Anyone, at any age, can search for something they don't know on the internet. The default time of a person's education lasts more than 12 years, and people have many opportunities to keep on learning and growing after high school, and even after college.

What's the problem?

Our knowledge in specific territories is becoming amazingly deep - so deep, that in some areas people need to keep learning 20-30 to fully understand their area of expertise. Only after such a period of time can they contribute to expanding the edge of knowledge.

Ok most times you don't have to completely understand your area of expertise to add value to the common knowledge database of Humanity, but you do need to get to a specific level... and as time passes, we need to learn more and more to reach that level.

What I'm saying is that it sooner or later people will have to dedicate their whole lives to learning and understanding one specific thing - for example in physics it is already quite complex to understand what string theory is exactly - and the farther we go, the more complex it becomes.

And if you dedicate your whole life to learning - you have no time left for creating something new! Our scientist are older and older! It's true - in the nineteenth century many lords in their 20s and 30s made great contributions to science - that's getting rarer and rarer!

So that's what I think will happen... unless we can enhance our learning. We can do this in one of two ways (or both): by making our lives longer (or our brains' lives longer) - this will give us more time to study and cultivate specific areas of humanity's knowledge.
Or by enhancing the learning and/or thinking procedure. This would mean developing a means of making humans learn quicker or making it possible for computers to think, to advance our understanding of the everything.

Anyways the whole thing is a long ways off... but I do find it freaky that maybe one day computers will have to do scientific research instead of us, because we are not smart enough.