I traveled to the distant future, where the world had been devastated by an extra-terrestrial attack. They had found us because pop music was being broadcast by radio into space. The future-us needed to prevent broadcast radio, and despite having time-travel, could not figure out where in the past they could easily make a single “cut” to stop radio from occurring. They agreed they needed something more epic & systematic if they were ever going to prevent it. They sent one of their best men back as far as they could go where he would establish a school of thought that would prove both helpful to the people of the time, and ultimately prevent the future attack. That man ended up being Jesus.