One should omit complex, laborious, expensive, unreliable tactics that are alleged by some to enable one to achieve higher returns than the stock market average.
By 1943 the laborious simulation calculations used electromechanical calculators of that time operated by human computers, mostly wives of the scientists.
Instead, printing remained an unmechanized, laborious process with pressing the back of the paper onto the inked block by manual rubbing with a hand tool.
