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Many years ago, they use to say that humans only use 5%-10% of their brains capacity on a regular basis. The really smart ones were up around 10%.
There are many ways to train people to use their brains more fully but there is a segment in the educational industry that finds that a big NO-NO.
Went into a contractor supply house and bought a quanity of stuff. Old time counterman looked at bill and wrote down total. Cause we both had the time he went back and figured it on a machine. He was off by .03.
If you practice it is easy to multiply/divide 3-5 digit numbers into each other.
The question is whether the reliance on machines and the subsequent reduction in use of the mind for everyday activities adversely affects ability to deal with new information. This in the line of use it or lose it.
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