Reply to John Whitfield: I think that one is mostly a semantic issue. In some definitions of learning, learning does equate to a change in behavior. In parenting for example, how is learning measured? If the behavior is changed. Therefore, for parenting, learning is a change in behavior.

I'd argue for many books the same is true, what is the use of a book if the knowledge is only in your head. Application, thus changing one's behavior, is essential for the proper use. Obviously this is not for everything the case, but I am highlighting a few scenarios where it would be accurate to say that learning is a change in behavior.

Nothing is ever black and white, it is quite simplistic to say such things, often there is a lot of nuance going on.

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As Luhmann would say, it is foolish to think that things are black and white; in most scenarios there is nuance... So too is it with reading speed, it must be relative or else it is not accurate. Even speed within books can differ.

I did not know that 1.2 million black men served in the army during ww2.

I never realized that German army's had a separate army for African Americans and White Americans.