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Michael Pupin, or rather Mihajlo Idvorski Pupin how he was officially called, was a completely unknown a figure for me. His surname sounds Slavic, and indeed, he was of Serbian origin, although born in what is now Hungary (and back in his time was a part of Austr-Hungarian Empire. Again, a prominent physicist and inventor, he should talk about technological developments (including, for example, long-distance communication, promoted by his inventions). But no, he instead talks about ‘industrial democracy’ and more equal distribution of wealth among people.