Not that Quantum Computing was going to be lifted out of its purely experimental phase any time soon.
But ... a seeming promising technique, topological qubits, has to be put back into its theoretical box.
(The theory is sound, the problem in on the practical side of it, ... which was kinda overlooked in the related research (oops).)
QuantaMagazine: Major Quantum Computing Strategy Suffers Serious Setbacks