Reborn in America, this is my era.

Make money early, and you won't be defeated by risks; don't make money early, and three generations will be impoverished.
Ethan, living in 2023, is transported to America in the last century by an accident. In this era of abundant talent and opportunity, he decides to make his way in the world and write his own legend with his fists.
Time travel, Silicon Valley, Hollywood, business warfare.