As a political concept, the idea of the forgotten man that appeals to those who feel that their concerns are dismissed was first used by William Graham Sumner in 1883.
On April 7, 1932, Franklin D. Roosevelt used that concept in a radio speech he delivered as part of his campaign for presidency representing the Democratic Party. He was talking about the forgotten man as the poor people who would need his New Deal the most.
If you find a machine which goes in a speed of 3×10^8 m/sec, you can see the past and future. You can even travel for longer distant objects like stars