Quantum computing is difficult to explain because you have to learn a mathematical model to understand it. You cannot make use of metaphors & analogies to familiar references. Why? Because our language developed in a classical world. It is not equipped to deal with quantum mechanics. Quantum mechanical objects are an entirely new ontological category. Light is not a particle, nor is it a wave; it's a different third kind of thing with which you've had no prior experience. The last time most people encountered a new ontological category was in early childhood, and since then they've been building up knowledge by relating it to what they already know. The only way to surmount this obstacle is to learn a new language - the language of mathematics. All metaphors and analogies will lead you astray; they will only confuse. Thankfully the math is quite easy, it is only basic linear algebra. Learn the math and you will learn quantum computing. Don't learn the math and you will not learn quantum computing.
Let's take the simplest phenomenon in quantum computing: superposition. People get very confused about superposition. Something being both 0 and 1 at the same time? Like fuzzy logic? Is it 0 and 1? Is it 0 or 1? No, superposition is a linear combination of 0 and 1 which can be collapsed according to certain measurement rules. It can also be manipulated with quantum logic gates. There is no simpler way of explaining it.
Let's take the simplest phenomenon in quantum computing: superposition. People get very confused about superposition. Something being both 0 and 1 at the same time? Like fuzzy logic? Is it 0 and 1? Is it 0 or 1? No, superposition is a linear combination of 0 and 1 which can be collapsed according to certain measurement rules. It can also be manipulated with quantum logic gates. There is no simpler way of explaining it.