In The Weapon Shops of Isher, by A. E. van Vogt, one of the characters travels back with 30-days worth of computer printouts of the stock market, each in its own envelope. He would open one envelope a day, to see which stocks would take big jumps by the afternoon, and buy them up in the morning. In 30 days he was filthy rich!
In The Weapon Shops of Isher, by A. E. van Vogt, one of the characters travels back with 30-days worth of computer printouts of the stock market, each in its own envelope. He would open one envelope a day, to see which stocks would take big jumps by the afternoon, and buy them up in the morning. In 30 days he was filthy rich!