There is a question: with almost every book in the world online, what need could there be for the physical ones? If this is not actually an inquiry but a rhetorical statement of an opinion not in favor of physical publications, I can hardly find enough good reasons to disagree with it.
* a rhetorical statement of an opinion not in favor of physical publications這個詞組的構成，有點意思吧。
* I can hardly find enough good reasons to disagree with it這個雙重否定的表達，其實不是什么艱深晦澀的表達方式吧。
It is fair for people to see printed books and other publications, such as newspapers and magazines, as uneconomical obsolescence. When the Internet, where the digital version of those publications is provided, makes the books accessible without charge, very few people or only a handful of readers would insist on paying for their reading. Money is the obvious key in this shift. Any argument against human nature, wanting a freebie, would be so indefensible.
* uneconomical obsolescence基于你背過的economical和obsolete，理解一下，詞性（對應到詞形）的活用而已。
* very few people or xxx would do something是你的老師一定給你講過的技巧：否定在名詞處而不在動詞處。這個技巧很常見啊，比如：I have no idea / no money. 或者 No one likes this.
* indefensible = 站不住腳的，是不是可以少用unreasonable或者implausible啦？
In fact, not only does this switch make economic sense, it also makes sense as another crucial factor changes and improves. The factor is technology. When the Internet was unable to perfectly replicate the authentic reading experience – for example, the visual experience, the flipping of pages, there may have been more people, albeit knowing there is a free option, staying with the printed books that charge. Today, as technology goes beyond providing the same reading experience and enhances the experience to a new level that no printed publications can reach, the free of charge adds to the Internet’s advantage. More and more readers, therefore, are moving to the Internet for the better and economical pleasure. What will happen in the future? Unless printed publications develop new and better tricks to win their clients back, which is foreseeably unlikely, or the Internet does stupid things and hands the clients back, readers will stay online.
* “The factor is technology.” 長句子之間夾入一個短句子。后面的句子的信息密集，需要在此之前有個短句子緩一下，就像爆發之前要定個神蓄個力一樣。
* “What will happen in the future?” 的用法道理如上。只是，故意用了一個提問的方式措辭。很巧妙，對不對？
* “when” “as” “unless”都是用來引導狀語從句的，是不是狀語從句經常用，而且好豐富。
To ask the question again: with almost all books in the world online for free, what need could there be for the physical ones? And that is a rhetorical question.