Thanks to the speed of light and Cosmic Microwave Background, billions of years ago is here and now. Observing light from the past is quite different from predicting a stock in the future. For one thing, the laws of physics are inherently stable, while stock price fluctuations are inherently chaotic. Any attempt at an alternate explanation of the history of the universe must do a better job of explaining all the current observations (CMB, red shift, dark matter gravitational lensing, stellar formation and lifecycles, novae, fossil records, multi-isotope dating, plate tectonics, etc.).