John Armstrong's Harvey and Lee

[Charles Drago]

Charles, your point is a semantic one.

It most certainly is not.

Your language in this instance is imprecise and as a consequence might misinform those who are not on familiar terms with the literature.

You wrote, "Armstrong came up with the doppleganger theory... " [emphasis added]

For the sake of accuracy and in service to overall clarity, you would have been well advised to write, "Armstrong came up with his doppelganger theory ... "

Thanks.