As I've written elsewhere, technology will be one of the drivers of de facto animal liberation. But as someone who lived through the Cold War and remembers fearing nuclear annihilation (my speech at high school graduation in 1986 was about the threat of nuclear war), there is always the question of the potential downsides of technology.
Today, even as we reap the benefits of rapidly advancing technology, we face different existential risks. This Atlantic article: But What Would the End of Humanity Mean for Me? covers the thoughts of some of the smartest people around today.