Walk Forward

In the apocalypse, lone travelers walk through the radiation desert alone every day, carrying iron cans on their backs to collect news, and are regarded as crazy by the survivors. After his death, people opened the iron can and found that it contained the voiceprints of all the deceased people in the old world. It turned out that when the wind passed through the special structure of the can, it would resonate with the remaining DNA and reproduce the last words of the deceased. In his solitude he preserved for mankind the last collective conversation.