Example 1
Collect all data from share market for last 50 years
Start your time machine and go back 50 years , invest in all best company today that made fortune in last 50 years
Example 2
Go back 500 years and buy from American Indians all places where today big places are , you can get places like Manhattan for few shiny marbles
Example 3
Go back some 2-2500 years to Egypt and rob Tutankhamun tomb [ you know where it was ]
For more info how to be rich and powerful contact Mr tasman1