Hold on to your hats, because I'm about to blow your mind.

The "aliens" were able to interact with the past, but their abilities were quite limited. They couldn't just send the answers to the universe back in time. In fact, their only influence on the past was the manipulation of gravity. They were able to create a wormhole, which is merely a distortion of gravity. And when they brought Coop into the 5th dimension, he could only communicate with his daughter (who was in another time and another galaxy) with gravitational fields. What is gravity? It is an attractive force between bodies. And do you know what else is an attractive force between bodies?

Back when Nichijou was popular, there was a .rar circulating with a bunch of Nichijou reaction images. This is the only image I have left. Does anyone have it?