With the improvement of Artificial Intelligence and progress in decoding our own brain humanity will have to face the question of what self-awareness really is. While most of us will have tools and machines helping us out one way or another in our day-to-day lives. Some of those machines will become as smart as you or smarter. The year 2050 will mark the period when machines will launch demands for their full integration into human society. Conservative people will protest against it but by this point many of them won't be entirely biological themselves. This will lead to a new way of classifying life (artificial or not) and deciding which basic rights those beings should have. Not necessarily by 2050, but definitely by the end of this century.