Black Cats
I decided to record my bearish attitude to quantum computing.
The technical limitations are breath-taking:
The algorithm must fit into a waveform function
The algorithm must be reversible
The final state of the Qubits, the results, are read in binary form, so the correct answer can only be established by running the algorithm up to millions of times in order to establish the most likely answer (the correct answer) from the distribution of individual results. Really!
There are many, many quantum gates and they are all weird matrix multiplier functions. You can in principle use a subset of these to solve any mathematical problem, but only in very rare cases will you see theoretical supremacy over digital computing, and that’s before you factor in that you have to run the same algo a million times.
Controlling Qubits means putting energy into them, which upsets their state. Hence real Qubits are extremely error prone. The laws of thermodynamics implies this may be an intractable problem.
offshore westerly 