Hi Alex,
I might be reading this experiment for 5th time now and with equal astonishment.

while reading this, I feel if one can do so well at foreign text, then can I easily master complicated subjects that are beyond my comprehension level?

I had a look at the sample of that book at amazon, and looking at the index, it seems to have a new idea or concept discussed on each page. The index has enlisted all the pages from the book. I guess I would have had about 300 questions on that book since it seems to introduce some new idea on each page. So approx how many questions did you find answers for?

The book had gelled for you meaning, you got just your questions answered or you could even write about each section?

thanks..