associated semantic meaning -> associated meaning
namespaced -> name\-spaced
idental an intentional" -> "accidental or

intentional
Fix up clumsy sentence about informal variant

example in section 2.1.2 as pointed out by Norman.
Remove scare-quotes around ``what'' in sec 2.
(or more) -> (or models) in para 2 section 2
remove "to some extent" from 2.2.5
sec 2.3.2 "pixel, and this is not..." ->

"pixel; such a distinction is not..."
Fix case of nouns to all plural "media ... tape"

to "media ... were tapes".
can not -> cannot
analogues -> analogs
reduce informality by deleting 'think' from 2.4.5
Add "More speculatively" to para in 2.4.5
"as bad" -> "just as bad" in sec 3.1
Try to clarify what is harder in sec 3.2
"names nor" -> "names, nor"
can not -> cannot
Remove "and the offered...problems" sentence which

was hard to parse, and contrary to stated position of
NOT offering solutions(!)