It was common until the 19th century to capitalize all nouns in English as well. I've found in reading older text that it doesn't noticeably affect the speed o

It was common until the 19th century to capitalize all nouns in English as well. I've found in reading older text that it doesn't noticeably affect the speed of comprehension, but the capitalization of nouns does seem to subtly shift the emphasis away from the action being described by the sentence and toward the things taking part in it.