Makes me think of Ada Lovelace and how awesome the mind can be when grappling with the abstract (though I'm sure non-quantum computers were still some help here to researchers for fiddling with quantum algorithms).
QC is currently basic research. It's not clear when machines large enough to be useful will exist, and I don't understand the reasons behind the current development speed. But keep in mind that we have computers with ~20qubits, and people have been consistently adding 3 more qubits every 2 years, for a rather long time.
As a comparison, we have a very nice idea on the requisites of a quantum computer. Nobody is exploring this space. Also, we have that very clear linear growth on their size, while we didn't have even a clear size measure for classical computers.
It looks like something very different to me. Really, that linear growth is unsettling in many ways.