Hi - welcome back!
Well remember that a Quantum Computer only acts to speed up certain kinds of calculations by putting some of the work into parallel using quantum superposition - in other words we are talking about the money and time needed to do a calculation. So unless the QC can achieve a substantial amount of parallelism, it will probably be cheaper to do the same operation with parallel conventional hardware.
The trouble is that systems that are in quantum superposition are very delicate.
David
Well i was never really gone, i still follow the forum a bit. Its just that most discussions start at a point much further than what i can agree with.
That is why i chimed in about quantum computing, it is a topic that is in full development.
I agree that QC will be very difficult, but that is no answer to the question i posed.
I have no idea which direction this is going, so i genuinely wonder what you would consider to be something useful?