content: I expect randomness to be one of the defining benefits of quantum computing. If we examine Bell's Theorem we see that particle entanglement is currently understood to be True Random. There are few things that are truly random and randomness is like infinity in some ways. Some infinities are bigger than others. Some randomness is less predictable than others. Currently, all classical computers don't do random. They do something called pseudo random, or make use of a pRNG in hardware or software. What we have is a random that is good enough for our current needs for daily functions, but that's actually been a long and interesting road. We've had a great deal of trouble generating random and true random can't be done with classical computers. If you can learn the initial starting state and observe past results then you can predict future results.  We currently believe the decay rate of a radioactive atom is random, but that's still debated and isn't very viable for generating the billions of random numbers we use every day. So, I'd expect the biggest benefit from quantum computing being in creation of true random. Though, there's even some debate for Bell's Theorem but it does have a growing amount of tests that have validated it. So, we currently hold it as having high confidence.  Randomness is one of my favorite subjects. It's one that is not well understood and there's still much to learn and some true philosophical questions that might not ever be answered with certainty.