Every age before this one has performed or permitted acts that to us are morally stupefying. So unless we have any reason to think we are more reasonable, morally better or wiser than at any time in the past, it is reasonable to assume there will be some things we are presently doing - possibly while flushed with moral virtue - that our descendants will whistle through their teeth at, and say 'What the hell were they thinking?' It is worth wondering what the blind spots of our age might be. What might we be doing that will be regarded by succeeding generations in the same way we now look down on the slave trade or using Victorian children as chimney sweeps.
- Douglas Murray, The Madness of Crowds: Gender, Race and Identity