Amazon outlines a five-to-seven-year timeline for commercially useful quantum computers, signaling the shift of a major emerging technology from research toward real-world business applications.

What happened: Peter DeSantis, Amazon's top executive overseeing artificial intelligence, chips and quantum work, said the first commercially useful quantum computers could arrive within the next five to seven years. These early machines will likely be small but powerful enough to solve certain problems that traditional computers cannot handle well.

Why it matters: Quantum computers are expected to help with specialized tasks in areas such as chemistry and materials science, not simply be faster versions of today's machines. Amazon is framing quantum computing as a future commercial opportunity rather than purely experimental research. Microsoft, Alphabet's Google and IBM are also investing heavily in quantum technology, so this timeline puts concrete expectations on a field that has long remained theoretical.

What to watch: Amazon's recent Ocelot chip shows the company is working on error correction, one of the field's hardest challenges. The next five to seven years will test whether Amazon and its competitors can turn that technical progress into products customers actually use.