“Quantum computing will surely have amazing applications that we cannot even conceive of right now…”
As best I understand, it’s not clear yet whether quantum computing will ever have any practical applications.
Furthermore, there has already been a great deal of work identifying potential applications for a quantum computer, so I’d say we’ve got a fair idea of what you could do with one if it ever exists.
The first (and important enough) practical application (apart from breaking RSA) seems to be simulation of quantum systems. But, this has some problems since alot of quantum models can be simulated with Deep Learning methods (getting better) to a good approximation. Probably, some quantum systems wont be good for (classical) Deep Learning, those might be the first candidates for application of quantum computers.