Now that illiteracy is not so wide spread, people everywhere are free to enjoy great literature.
现在文盲不是很普遍,世界各地的人都可以很自由地欣赏文学作品。
and assuming such an automatic messenger picked up our first broadcasts of the 1920's,
假定外星人的这种自动化信息装置接收到了我们二十世纪二十年代的第一次广播信号,