If he changed his views and then edited his book to only show his new viewpoint then absolutely yes. If he edited his book to rebut his own argument and lays o

If he changed his views and then edited his book to only show his new viewpoint then absolutely yes. If he edited his book to rebut his own argument and lays out the case then maybe not but it should be stated in the forward that the change was made. We are moving forward into a time where media is only digital and can be changed at will, it is important to establish a system where when we make changes we record them and also why we made the changes. If we do not, the only future is one where information is as ethereal as the morning dew and subject to the zeitgeist of the times.