### Theory:

Margie even wrote about it that night in her diary. On the page headed $$17th$$ May $$2157$$, she wrote, “Today Tommy found a real book!”

It was a very old book. Margie’s grandfather once said that when he was a little boy, his grandfather told him that there was a time when all stories were printed on paper.

They turned the pages, which were yellow and crinkly, and it was awfully funny to read words that stood still instead of moving the way they were supposed to — on a screen, you know. And then when they turned back to the page before, it had the same words on it that it had had when they read it the first time.
Explanation:

Margie is the main character of the story around $$11$$ years of age. She writes a diary on the night of $$17th$$ May $$2157$$. Now, we are living in $$2020$$. The story is set in the future in the year $$2157$$, almost one and a half-century that is $$137$$ years from now. At that time, Margie writes a diary, and she writes that ‘Tommy found a real book’, and she is feeling so odd because, in her times, real books do not exist. They only have e-books, the virtual books. So, books in the format of print on paper have vanished, and so, Margie is amazed to see a real book.

Margie remembers her grandfather. He told her that his grandfather studied all the books that were printed on paper. So, this kind of book is historical or ancient for them. Something which they cannot believe they can’t imagine.

Margie is talking about the book that Tommy had found. She says that the pages of the book had turned yellow, and they had been crushed as it was very old. The children found it very funny to read the words which stood still. (Now what does it mean by that words that stood still? As the words were printed on the pages, they did not move). On the other hand, the books that Margie and Tommy read were online (e-books). So, in the e-books how it happens, the text keeps on moving as your screen moves, but it was different in the books printed on paper. It was a very strange experience for these children. When you have a book, which is printed on paper, whenever you flip the pages, you get to see the same thing written on the pages, on the other hand, in an e-book, the text keeps on changing on the screen. The screen is the same, but the text keeps on changing. So, whenever you go back, the text is different.

Meanings of difficult words:

 Numbers Word Meaning 1. Crinkly With many folds or lines, something that is crushed.
Reference:
State Council of Educational Research and Training (2018). Term-1 English Standard-9. The fun they had - Isaac Asimov (pp. 150-153). Published by the Tamil Nadu Textbook and Educational Services Corporation.