Parallel worlds — one. Fire and flame

Rutra had a fix-it idea. He has developed a program and is preparing to implement it. First he needs to realize no less ambitious and grandiose idea, very original, fateful for mankind, incredible, but in fact, as it turned out, has a very simple solution. It is only necessary to give immortality to mankind. Everything grandiose is simple. Much more difficult was to overcome the speed of light. This idea captured Rutra's mind so much that everything around him became less important. Obsessed with this thought, he set about implementing his plan.