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The smartphone app is another good example.
In reality, most people probably will never invent something as world-changing as the steam engine.
It is generally believed that inventions are the result of focused effort by inventors seeking specific solutions to specific problems.
Necessity is the mother of invention -or so the saying goes.
There is seemingly no end to the number of inventions we can look forward to in the future.
Clearly, many inventions have come about from a mix of astute observation and inspired thinking.
