It's amusing when some advertisement states that their new product is a quantum leap ahead of the others, meaning it has been vastly improved over the previous model, or is now so much better than the competition. The original meaning of the phrase in quantum theory, which is the model of how elementary particles behave, is 'the smallest change possible, and always random'. Well, not exactly random, but within the possible probabilities of that change. In any event, the exact result of the change cannot be specifically predicted ahead of time. So, when some company improves their product in this quantum way, the change is smaller than miniscule, and even they don't know what has changed, or if it's an improvement or not. It's just different in some unknown way than the previous model.