Humanity is missing, luckily I have billions of clones

Tom cloned another self based on himself. Then he found that he could connect the clone's brain with his consciousness. With each clone, he would have one more body and one more brain. His memory, learning ability, action ability, engineering ability, etc. would be doubled accordingly. Facing the vast sea of stars after the inexplicable disappearance of human civilization, Tom had no fear in his heart. “Although I am the only one left in human civilization, there are countless 'me'...”