What's Next?
Understanding Quantum Computing
Five milestones, three timelines — tools for tracking the field.
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Learning Material
4 pagesLesson 9 — What's Next?
Understanding the Complex: Understanding Quantum Computing
As of May 2026
Nobody knows exactly when fault-tolerant quantum computing arrives. The honest position is a range: somewhere between "this decade" (optimists) and "by mid-century" (cautious experts). But "we don't know precisely" doesn't mean all forecasts are equal. Some milestones are better-defined than others. Here are five to watch.