Washington insider David Ignatius’ gripping fictionalized view of Chinese technology espionage is also a perfect, and necessary, introduction and motivation to quantum computing.
The YouTube video “Quantum computing explained with a deck of cards” shows us not merely a faster, more efficient computer, but a change as drastic as that between modern conventional computers and no computers. For example, one effect of quantum computer power is the end of ordinary credit cards. Either our encrypted cards will no longer be feasible, or they will be based on some new quantum encryption. Is all this mere supposition, scientific fantasizing? Do quantum computers exist?
IBM is a computer pioneer and bastion upon which the U.S. government has often called for research and development as well as products. Every quantum computer has associated ordinary, conventional, computer input and output. From your conventional computer, you can access a quantum computer via the “IBM Quantum Experience.”
But everyone who wishes to stay in touch with the 21st century should read at least Ignatius’ book, "The Quantum Spy," and check out online materials such as the video referenced above.