Long time ago I asked a friend, what is missing living in a country without four seasons. She said that the sense of progress is what's missing. I guess the same feeling is missing when I am reading an e-book. Reading an e-book I don't have a sense of how many pages left to read. I know that there is an indicator of the number pages in most e-books reader. There's even a percentage indicator. But, I don't get the sensation. When reading a conventional, physical book, I put a bookmark. Looking at the bookmark I get the sense of how much more I have to read. Sometimes I flip the pages just to get the sense. I know I can calculate based on current page and the number of pages in the book, but it just don't work. Maybe this is because I came from an analog world? Anyway, it would be interesting if somebody can create that kind of progress sensation when reading e-books. That would be neat.