During the revolution, the last of Earth’s nonrenewable resources were entirely depleted, so coal miners have become obsolete. ⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⢀⣶⣿⣿⣿⣿⣿⣿⣶⣆⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄ ⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⣸⣿⣿⠉⠉⠉⠄⠉⢹⣿⣦⡀⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄ ⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⢿⣿⣿⣁⠄⠄⠤⠤⡀⠻⣿⠃⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄ ⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠘⣿⣿⣿⡗⠖⡶⢾⣶⠊⡏⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄ ⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⢻⣿⣿⣅⣈⠂⠐⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄ ⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠘⢿⣾⣇⣂⣠⠄⠄⠄⠁⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄ ⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⢘⣿⣗⠒⠄⢨⠶⢁⣄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄ ⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠨⣿⣿⡿⠋⠁⣴⣿⣿⣷⣦⣄⡀⠄⠄⠄⠄⠄⠄⠄⠄ ⠄⠄⠄⠄⠄⠄⠄⠄⠄⢀⣠⣄⣶⣎⢱⢄⢀⣾⣿⣿⣿⣿⣿⣿⣿⣶⣦⣤⣄⠄⠄⠄⠄ ⠄⠄⠄⠄⠄⠄⠄⢠⣾⣿⣿⡞⢝⡟⠃⣠⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣯⣿⣿⣇⠄⠄⠄ ⠄⠄⠄⠄⠆⢄⠄⢛⡫⠝⢿⡥⠟⡃⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣼⣭⣻⣿⣿⡀⠄⠄ ⠄⠄⠄⣴⣆⠄⢋⠄⠐⣡⣿⣆⣴⣼⣿⣿⣿⣿⣿⣿⣿⣿⠏⢈⣿⣿⣿⣿⣿⣿⣷⡄⠄ ⠄⠄⣼⣿⣷⠄⠉⠒⣪⣹⣟⣹⣿⣿⣿⣿⣿⣟⣿⣿⣿⡇⢀⣸⣿⣿⣿⢟⣽⣿⣿⣇⠄