#### Impenetrable descriptions of Quantum Computing

The problem I have with trying to understand this technology is relating it to real world problems.

I think I can understand that you can store information in a qubit, and extract that information again, but what I find difficulty with is manipulating that information in a meaningful way, and extracting the result, which is the essence of what computing is about.

Mind you, I also struggled with Fourier Analysis, which formed the basis a now defunct branch of (analog) computing, which IIRC (from my University maths course decades ago) represent an observable artifact (like a complex waveform) as a sum of a series of more simple mathematical equations, which you can then manipulate using either algebra or vector mathematics to model how the artifact will behave under certain circumstances (although FA has alternative uses, I understand).

But I've just not seen something that describes how the data in the qubit is manipulated.

I can see something of what Destroy All Monsters is trying to say, in that it is the interaction of multiple qubits that enable you to get meaningful results from a combination of more than one piece of information, but I just cant see how this interaction is controlled. And without control, the whole field appears useless. Maybe I just don't understand what is the aim, the only thing I can see is it's not applicable to what we used to call 'general computing'. Your not going to be doing your word processing on a quantum computer!

On the subject of people needing to understand maths to be able to even approach the field, what a lot of people forget is that mathematical notation is just like any other jargon. If you don't even understand how the notation works, no amount of reiteration written in that notation will mean anything.

But then again, I realized a long time ago that there was a real ceiling on the amount of understanding I would ever achieve in maths once it got into apparently abstract areas.