These People Still Upload for a Living

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Dano discovered and propounded from time to time to his proponents around him that repetition, contraction, summarization, and substitution are four major attributes of the modern English prose. Of all those tactical types of the paragraph development, Dano knew repetition to be the prototype of the prose skills.

Text:
Of course, for millions of people in developing countries, the quest for material improvement still involves walking to a well, substituting on a dollar a day, plowing a field barefoot behind an ox or gathering wood and carrying it on their heads for five miles. These people still upload for a living, not download. (The Lexus and the Olive Tree, Thomas L. Friedman, p.33) (The Korean version, p.82)

Dano's comments:
The bold-typed statement does not carry a particular meaning here in this case. It is nothing but a repetition of the previous statement, or a substitute for what the writer had stated immediately before. It is the change of a mode of statement, that is. So the verb 'upload' literally means that one puts his or her load up on their heads.