Quantum Supremacy by Michio Kaku

Newtonian physics works for most of our everyday experiences. But for the biggest systems we encounter, we need Einstein’s theories of relativity to make sense of spacetime.

Neither, nor does our own intuitive understanding of the world, work at the smallest scale we understand. This is the quantum level, where electrons can be at two places at the same time, transmit information faster than speed of light and instantly analyze infinite paths between two points.

As Danish physicist and Nobel laureate Neils Bohr (1885-1962) wrote: “Anyone who is not shocked by quantum theory does not understand it.”

And much like we didn’t understand all the ramifications of the atomic age before we developed nuclear weapons, governments and companies are busy investing in the military and commercial implications of the potentially radical advancement in quantum computing.

That’s the timing from prominent physicist and science communicator Michio Kaku in his 2023 book “Quantum Supremacy: How the Quantum Computer Revolution Will Change Everything.”

By no means exhaustive, I picked up the book for a primer on the technology my work overlaps with. Below I share my notes for future reference.

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