Back in 2013, I've posted about how the EPUB format is inadequate for e-books. People promised a 'new' EPUB3 format, which would add metadata, semantics, and other direly needed things.
Now, in the middle of 2019, EPUB3 added nothing of metadata or semantics, but even more Webkit features, formulas, and other junk people do not need. It also not seen in the wild.
And the new E-ink technologies make screens more expensive, not more cheaper as one would expect. The readers in an affordable $50..$100 range are nowhere to be seen.
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