Certain artificial intelligence (AI) stocks -- chief among them Palantir Technologies -- currently trade at absurd valuations. But Palantir looks cheap compared to popular quantum computing stocks Rigetti Computing ( RGTI 3.87% ) and D-Wave Quantum ( QBTS 6.72% ) . Their share prices have increased 3,500% and 1,700%, respectively, since January 2023.

I expect both stocks to crash next year when the quantum computing bubble inevitably bursts. Here's why.

Practically useful quantum computers are likely (at least) a decade away

Qubits , the fundamental unit of information in a quantum computer , can exist in states of superposition and entanglement. That means they can exist in multiple states at the same time and the state of multiple qubits can be inextricably linke

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