Virtual reality, backed by high computational power, makes possible
subtle forms of manipulation that influences people but that they
won't notice.
For instance, a political speech can be altered slightly for each
person watching, making the speaker's face subtly resemble the
viewer's face. This has been proven to make viewers, on the average,
have a more favorable attitude toward the speaker.
The author proposes developing systems for detecting the use of this
technique and other manipulation techniques.
I fear that nonfree software, combined with remote attestation,
will be used to make it impossible to run the software to do this.
It will be "unauthorized."