Musashi Miyamoto once said,
“Perceive that which cannot be seen by the eye.”
So focus your attention on no particular thing if you want to become aware of everything—the difference between extensive and intensive learning.
Humans tend to emphasize the latter. It’s natural to want to pay close attention to what you want to learn. But that doesn’t work well for languages.
Yesterday I skimmed over the first few pages of Harry Potter in Spanish. I simply highlighted sentences that I could roughly ‘recognize’. This amounts to between a third and a half of the text.
Exten-cellent, no? Si!