Answer
Suspense requires pausing and resuming rendering. Synchronous models cannot interrupt execution, making Suspense impossible without async fiber architecture.
Quick Answer
Suspense requires the rendering model to be interruptible — a component can stop mid-render (by throwing a Promise) and resume later. Synchronous rendering models run to completion; they have no mechanism to suspend mid-tree and resume later. Concurrent mode's interruptible fiber architecture is a prerequisite for Suspense to work.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ